Use files in package.json

[SimenB]

Reduces amount of files consumer gets when npm installing.

Before: http://hastebin.com/wacequlono.sh
After: http://hastebin.com/karavebiko.sh

I also added phantomjs to devDeps. I expect npm install && npm test to not explode because of missing dependencies 😄

npm install <package> automatically alphabetizes the list

[SimenB]

@chiefGui As you seem to be maintaining this now, could you merge this? I don't need test, documentation, gruntfile or extra copies of libraries (5 backbone, one jquery and one underscore) 😄

[chiefGui]

Hey @SimenB! Thank you for highlighting up this issue. I just have to patch it right then I'll merge—tested just right now.

[rundef]

grunt still fails because phantomjs is missing.

[SimenB]

@chiefGui ping