Converted to gulp build, updated to use bower and npm for deps
Merge remote-tracking branch 'remotes/postaljs-original/master'

Conflicts:
	README.md
	build.json
	example/index.html
	ext/expect.js
	ext/jquery.js
	ext/mocha.js
	ext/postal.js
	ext/underscore.js
	lib/postal.diagnostics.js
	lib/postal.diagnostics.min.js
	package.json
	spec/Postal.diagnostics.spec.js
	spec/index.html