Merge branch 'release/0.2.0' into develop
Make the defaults not rely on a bower install.
Improve sourcemap support

- Include the link comment in the minified file.
- Make paths non absolute so souremap doesnt point at files, but urls
- Add a command line switch and make sourcemap generation off by default.
Tweak the usage instructions
Update readme with a bit more explanation on build
Reorganize build opts into an object, isolate validation
Bump version number
Merge branch 'release/1.0.0'