Incremental builds

[timshannon]

When running gobble or gobble watch gobble appears to only rebuild the necessary parts for the files that have changed, which is awesome (correct me if I'm making any assumptions here).

However if you do gobble build it re-reruns the entire build process regardless of which files have changed. Not a big deal usually, as it's meant for your "production" environment build (which it defaults to).

My dev environment is run through Vim, and my (non-frontend) workflow usually revolves around building code from vim with :make. I can easily write a makefile to call gobble build, however it runs a full build every time, regardless of what file I change. It would be nice if I could plug into this incremental build setup that gobble has with the other forms of building.