ignore node_modules
remove all ant - related stuff
travis-ci stuff (package.json + .travis.yml)
nodejs build
remove krang / ant / rhino related submodules
add krang-js as a submodule for now (later has to be moved into a npm
registry?)
use krang-js submodule
support for parsing filename and file type
support for krang plugin
krang-js submodule?