diff --git a/package-lock.json b/package-lock.json
index f880ee7..9457737 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -427,6 +427,11 @@
       "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
       "dev": true
     },
+    "after": {
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
+    },
     "ajv": {
       "version": "6.7.0",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.7.0.tgz",
@@ -563,6 +568,11 @@
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
       "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
     },
+    "arraybuffer.slice": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz",
+      "integrity": "sha1-8zshWfBTKj8xB6JywMz70a0peco="
+    },
     "arrify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
@@ -614,6 +624,11 @@
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
       "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg=="
     },
+    "backo2": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
+      "integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc="
+    },
     "backoff": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/backoff/-/backoff-2.5.0.tgz",
@@ -677,11 +692,29 @@
         }
       }
     },
+    "base64-arraybuffer": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
+      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
+    },
     "base64-js": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.0.tgz",
       "integrity": "sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw=="
     },
+    "base64id": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/base64id/-/base64id-1.0.0.tgz",
+      "integrity": "sha1-R2iMuZu2gE8OBtPnY7HDLlfY5rY="
+    },
+    "better-assert": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
+      "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
+      "requires": {
+        "callsite": "1.0.0"
+      }
+    },
     "binary-extensions": {
       "version": "1.12.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.12.0.tgz",
@@ -696,6 +729,11 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "blob": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.4.tgz",
+      "integrity": "sha1-vPEwUspURj8w+fx+lbmkdjCpSSE="
+    },
     "body-parser": {
       "version": "1.18.3",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
@@ -843,6 +881,11 @@
       "integrity": "sha1-JtII6onje1y95gJQoV8DHBak1ms=",
       "dev": true
     },
+    "callsite": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/callsite/-/callsite-1.0.0.tgz",
+      "integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA="
+    },
     "callsites": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.0.0.tgz",
@@ -1065,11 +1108,21 @@
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
       "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag=="
     },
+    "component-bind": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/component-bind/-/component-bind-1.0.0.tgz",
+      "integrity": "sha1-AMYIq33Nk4l8AAllGx06jh5zu9E="
+    },
     "component-emitter": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
       "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
     },
+    "component-inherit": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/component-inherit/-/component-inherit-0.0.3.tgz",
+      "integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM="
+    },
     "compress-commons": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/compress-commons/-/compress-commons-1.2.2.tgz",
@@ -1428,6 +1481,90 @@
         "once": "^1.4.0"
       }
     },
+    "engine.io": {
+      "version": "1.8.5",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-1.8.5.tgz",
+      "integrity": "sha512-j1DWIcktw4hRwrv6nWx++5nFH2X64x16MAG2P0Lmi5Dvdfi3I+Jhc7JKJIdAmDJa+5aZ/imHV7dWRPy2Cqjh3A==",
+      "requires": {
+        "accepts": "1.3.3",
+        "base64id": "1.0.0",
+        "cookie": "0.3.1",
+        "debug": "2.3.3",
+        "engine.io-parser": "1.3.2",
+        "ws": "~1.1.5"
+      },
+      "dependencies": {
+        "accepts": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.3.tgz",
+          "integrity": "sha1-w8p0NJOGSMPg2cHjKN1otiLChMo=",
+          "requires": {
+            "mime-types": "~2.1.11",
+            "negotiator": "0.6.1"
+          }
+        },
+        "debug": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
+          "requires": {
+            "ms": "0.7.2"
+          }
+        },
+        "ms": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+        }
+      }
+    },
+    "engine.io-client": {
+      "version": "1.8.5",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-1.8.5.tgz",
+      "integrity": "sha512-AYTgHyeVUPitsseqjoedjhYJapNVoSPShbZ+tEUX9/73jgZ/Z3sUlJf9oYgdEBBdVhupUpUqSxH0kBCXlQnmZg==",
+      "requires": {
+        "component-emitter": "1.2.1",
+        "component-inherit": "0.0.3",
+        "debug": "2.3.3",
+        "engine.io-parser": "1.3.2",
+        "has-cors": "1.1.0",
+        "indexof": "0.0.1",
+        "parsejson": "0.0.3",
+        "parseqs": "0.0.5",
+        "parseuri": "0.0.5",
+        "ws": "~1.1.5",
+        "xmlhttprequest-ssl": "1.5.3",
+        "yeast": "0.1.2"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
+          "requires": {
+            "ms": "0.7.2"
+          }
+        },
+        "ms": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+        }
+      }
+    },
+    "engine.io-parser": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-1.3.2.tgz",
+      "integrity": "sha1-k3sHnwAH0Ik+xW1GyyILjLQ1Igo=",
+      "requires": {
+        "after": "0.8.2",
+        "arraybuffer.slice": "0.0.6",
+        "base64-arraybuffer": "0.1.5",
+        "blob": "0.0.4",
+        "has-binary": "0.1.7",
+        "wtf-8": "1.0.0"
+      }
+    },
     "error-ex": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
@@ -1712,6 +1849,14 @@
       "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.0.tgz",
       "integrity": "sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA=="
     },
+    "exec-sh": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/exec-sh/-/exec-sh-0.2.2.tgz",
+      "integrity": "sha512-FIUCJz1RbuS0FKTdaAafAByGS0CPvU3R0MeHxgtl+djzCc//F8HakL8GzmVNZanasTbTAY/3DRFA0KpVqj/eAw==",
+      "requires": {
+        "merge": "^1.2.0"
+      }
+    },
     "execa": {
       "version": "0.10.0",
       "resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
@@ -1993,6 +2138,11 @@
         "object-assign": "^4.0.1"
       }
     },
+    "file-size": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/file-size/-/file-size-0.0.5.tgz",
+      "integrity": "sha1-BX1Dw6Ptc12j+Q1gUqs4Dx5tXjs="
+    },
     "fill-range": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-4.0.0.tgz",
@@ -2783,6 +2933,26 @@
         }
       }
     },
+    "has-binary": {
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/has-binary/-/has-binary-0.1.7.tgz",
+      "integrity": "sha1-aOYesWIQyVRaClzOBqhzkS/h5ow=",
+      "requires": {
+        "isarray": "0.0.1"
+      },
+      "dependencies": {
+        "isarray": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
+        }
+      }
+    },
+    "has-cors": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/has-cors/-/has-cors-1.1.0.tgz",
+      "integrity": "sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk="
+    },
     "has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
@@ -2967,6 +3137,11 @@
       "resolved": "https://registry.npmjs.org/indexes-of/-/indexes-of-1.0.1.tgz",
       "integrity": "sha1-8w9xbI4r00bHtn0985FVZqfAVgc="
     },
+    "indexof": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
+      "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10="
+    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -3284,6 +3459,11 @@
       "integrity": "sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=",
       "dev": true
     },
+    "json3": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/json3/-/json3-3.3.2.tgz",
+      "integrity": "sha1-PAQ0dD35Pi9cQq7nsZvLSDV19OE="
+    },
     "jsonfile": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
@@ -3489,6 +3669,11 @@
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
       "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
     },
+    "merge": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/merge/-/merge-1.2.1.tgz",
+      "integrity": "sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ=="
+    },
     "merge-descriptors": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
@@ -5199,6 +5384,11 @@
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=",
       "dev": true
     },
+    "object-component": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/object-component/-/object-component-0.0.3.tgz",
+      "integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE="
+    },
     "object-copy": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/object-copy/-/object-copy-0.1.0.tgz",
@@ -5311,6 +5501,11 @@
         "wordwrap": "~1.0.0"
       }
     },
+    "options": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/options/-/options-0.0.6.tgz",
+      "integrity": "sha1-7CLTEoBrtT5zF3Pnza788cZDEo8="
+    },
     "os-tmpdir": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
@@ -5392,6 +5587,30 @@
         "json-parse-better-errors": "^1.0.1"
       }
     },
+    "parsejson": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/parsejson/-/parsejson-0.0.3.tgz",
+      "integrity": "sha1-q343WfIJ7OmUN5c/fQ8fZK4OZKs=",
+      "requires": {
+        "better-assert": "~1.0.0"
+      }
+    },
+    "parseqs": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.5.tgz",
+      "integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
+      "requires": {
+        "better-assert": "~1.0.0"
+      }
+    },
+    "parseuri": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
+      "integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
+      "requires": {
+        "better-assert": "~1.0.0"
+      }
+    },
     "parseurl": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
@@ -6126,6 +6345,133 @@
         }
       }
     },
+    "socket.io": {
+      "version": "1.7.4",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-1.7.4.tgz",
+      "integrity": "sha1-L37O3DORvy1cc+KR/iM+bjTU3QA=",
+      "requires": {
+        "debug": "2.3.3",
+        "engine.io": "~1.8.4",
+        "has-binary": "0.1.7",
+        "object-assign": "4.1.0",
+        "socket.io-adapter": "0.5.0",
+        "socket.io-client": "1.7.4",
+        "socket.io-parser": "2.3.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
+          "requires": {
+            "ms": "0.7.2"
+          }
+        },
+        "ms": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+        },
+        "object-assign": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.0.tgz",
+          "integrity": "sha1-ejs9DpgGPUP0wD8uiubNUahog6A="
+        }
+      }
+    },
+    "socket.io-adapter": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-0.5.0.tgz",
+      "integrity": "sha1-y21LuL7IHhB4uZZ3+c7QBGBmu4s=",
+      "requires": {
+        "debug": "2.3.3",
+        "socket.io-parser": "2.3.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
+          "requires": {
+            "ms": "0.7.2"
+          }
+        },
+        "ms": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+        }
+      }
+    },
+    "socket.io-client": {
+      "version": "1.7.4",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-1.7.4.tgz",
+      "integrity": "sha1-7J+CA1btme9tNX8HVtZIcXvdQoE=",
+      "requires": {
+        "backo2": "1.0.2",
+        "component-bind": "1.0.0",
+        "component-emitter": "1.2.1",
+        "debug": "2.3.3",
+        "engine.io-client": "~1.8.4",
+        "has-binary": "0.1.7",
+        "indexof": "0.0.1",
+        "object-component": "0.0.3",
+        "parseuri": "0.0.5",
+        "socket.io-parser": "2.3.1",
+        "to-array": "0.1.4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
+          "requires": {
+            "ms": "0.7.2"
+          }
+        },
+        "ms": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+        }
+      }
+    },
+    "socket.io-parser": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-2.3.1.tgz",
+      "integrity": "sha1-3VMgJRA85Clpcya+/WQAX8/ltKA=",
+      "requires": {
+        "component-emitter": "1.1.2",
+        "debug": "2.2.0",
+        "isarray": "0.0.1",
+        "json3": "3.3.2"
+      },
+      "dependencies": {
+        "component-emitter": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.1.2.tgz",
+          "integrity": "sha1-KWWU8nU9qmOZbSrwjRWpURbJrsM="
+        },
+        "debug": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
+          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "requires": {
+            "ms": "0.7.1"
+          }
+        },
+        "isarray": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
+        },
+        "ms": {
+          "version": "0.7.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
+          "integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg="
+        }
+      }
+    },
     "sort-keys": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/sort-keys/-/sort-keys-2.0.0.tgz",
@@ -6199,6 +6545,64 @@
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
+    "static-dev-server": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/static-dev-server/-/static-dev-server-1.0.0.tgz",
+      "integrity": "sha1-r+npaol7HzBJxCunZdZpmATZcyE=",
+      "requires": {
+        "chalk": "^0.5.1",
+        "commander": "^2.3.0",
+        "file-size": "0.0.5",
+        "mime": "^1.2.11",
+        "socket.io": "^1.7.3",
+        "watch": "^1.0.2"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "0.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-0.2.1.tgz",
+          "integrity": "sha1-DY6UaWej2BQ/k+JOKYUl/BsiNfk="
+        },
+        "ansi-styles": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-1.1.0.tgz",
+          "integrity": "sha1-6uy/Zs1waIJ2Cy9GkVgrj1XXp94="
+        },
+        "chalk": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-0.5.1.tgz",
+          "integrity": "sha1-Zjs6ZItotV0EaQ1JFnqoN4WPIXQ=",
+          "requires": {
+            "ansi-styles": "^1.1.0",
+            "escape-string-regexp": "^1.0.0",
+            "has-ansi": "^0.1.0",
+            "strip-ansi": "^0.3.0",
+            "supports-color": "^0.2.0"
+          }
+        },
+        "has-ansi": {
+          "version": "0.1.0",
+          "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-0.1.0.tgz",
+          "integrity": "sha1-hPJlqujA5qiKEtcCKJS3VoiUxi4=",
+          "requires": {
+            "ansi-regex": "^0.2.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "0.3.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-0.3.0.tgz",
+          "integrity": "sha1-JfSOoiynkYfzF0pNuHWTR7sSYiA=",
+          "requires": {
+            "ansi-regex": "^0.2.1"
+          }
+        },
+        "supports-color": {
+          "version": "0.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-0.2.0.tgz",
+          "integrity": "sha1-2S3iaU6z9nMjlz1649i1W0wiGQo="
+        }
+      }
+    },
     "static-extend": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/static-extend/-/static-extend-0.1.2.tgz",
@@ -6446,6 +6850,11 @@
         "os-tmpdir": "~1.0.2"
       }
     },
+    "to-array": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
+      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
+    },
     "to-buffer": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
@@ -6564,6 +6973,11 @@
         }
       }
     },
+    "ultron": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
+      "integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po="
+    },
     "union-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
@@ -6781,6 +7195,22 @@
         }
       }
     },
+    "watch": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/watch/-/watch-1.0.2.tgz",
+      "integrity": "sha1-NApxe952Vyb6CqB9ch4BR6VR3ww=",
+      "requires": {
+        "exec-sh": "^0.2.0",
+        "minimist": "^1.2.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
+        }
+      }
+    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
@@ -6866,16 +7296,40 @@
         "write-file-atomic": "^2.0.0"
       }
     },
+    "ws": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.5.tgz",
+      "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
+      "requires": {
+        "options": ">=0.0.5",
+        "ultron": "1.0.x"
+      }
+    },
+    "wtf-8": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wtf-8/-/wtf-8-1.0.0.tgz",
+      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo="
+    },
     "xdg-basedir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-3.0.0.tgz",
       "integrity": "sha1-SWsswQnsqNus/i3HK2A8F8WHCtQ="
     },
+    "xmlhttprequest-ssl": {
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
+      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0="
+    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
     },
+    "yeast": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
+    },
     "zip-stream": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-2.0.1.tgz",
diff --git a/package.json b/package.json
index 6ed9414..9077947 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
     "http-proxy": "^1.17.0",
     "netlify": "ssh+git://git@github.com:netlify/js-client-private",
     "netlify-rules-proxy": "ssh+git://git@github.com:netlify/netlify-rules-proxy",
+    "static-dev-server": "^1.0.0",
     "wait-port": "^0.2.2"
   },
   "devDependencies": {
diff --git a/src/commands/dev/index.js b/src/commands/dev/index.js
index 1a5d1e6..ae2e3a2 100644
--- a/src/commands/dev/index.js
+++ b/src/commands/dev/index.js
@@ -75,6 +75,23 @@ async function startProxy(settings, addonUrls) {
 }
 
 function startDevServer(settings, log, error) {
+  if (settings.noCmd) {
+    const StaticServer = require('static-dev-server')
+    const server = new StaticServer({
+      rootPath: settings.dist,
+      name: 'netlify-dev',
+      port: settings.proxyPort,
+      templates: {
+        notFound: '404.html',
+      },
+    })
+
+    server.start(function () {
+      log('Server listening to', settings.proxyPort)
+    })
+    return
+  }
+
   const ps = spawn(settings.cmd, settings.args, {env: settings.env})
 
   ps.stdout.on('data', data => {
@@ -112,12 +129,16 @@ class DevCommand extends Command {
         }
       })
     }
-    const settings = serverSettings()
+    let settings = serverSettings()
     if (!(settings && settings.cmd)) {
-      this.log('Dev server command not detected - exiting.')
-      process.exit(1)
+      this.log('No dev server detected, using simple static server')
+      settings = {
+        noCmd: true,
+        port: 8888,
+        proxyPort: 3999,
+        dist: config.build && config.build.publish,
+      }
     }
-
     startDevServer(settings, this.log, this.error)
     if (functionsDir) {
       const fnSettings = await serveFunctions({functionsDir})