Changed builds to not require a local webserver

Changes:

• Updated dependencies.
• Changed the builds so that the dist uses index.html from disk instead of spinning up localhost. This brings the number of dependencies shipped to the user down to zero 🎉
• Added in some Manifest Comments to the package.json
• Changed the global to only be accessed via window.nw.global to be consistent with window.nw.require and window.nw.process. So if you used window.nw_global, you'll need to change that.

Diff since last release:

• v1.1.0...v1.2.0