Cache template dependencies
Be more strict in #commonjs_module?
Add an option specify paths for browserification
Make source map environments configurable
Replace stabby lambda for 1.9.3 compatibility
Fix config access
Merge pull request #12 from CQQL/configuration

Configuration
Merge remote-tracking branch 'upstream/master' into feature-commandline-options

Conflicts:
	README.md
	lib/browserify-rails/browserify_processor.rb
	lib/browserify-rails/railtie.rb
Style fixes
Text fixes after #12 merge