same build stuff for css as js
handle errors for CSS or JS build
store error in result; better error parsing
error on first build
actually serve min/source in non dev mode
cleanup
cleanup readme and sample; rename two moonboots methods to _methodname to show they are private and undocumented
in build, use cb(err) if the source of the file returned an error
Merge pull request #8 from lukekarrys/css-build

Css build