emmylua_ls

What's Changed

• emmylua_check by @lewis6991 in #513
• emmylua_check fixes by @lewis6991 in #518
• migrate from structopt to clap by @lewis6991 in #519
• fix(check): init stdlib after applying emmyrc by @lewis6991 in #520
• improve api versioning by @tinyleolin in #533
• update by @xuhuanzy in #514
• update by @xuhuanzy in #538

Full Changelog: 0.8.0...0.8.1