rename the gulp option 'dev' into 'debug'.
drop the production procfile because we don't need heroku.
fix up the stylus compiling and enable nib extension.
change the order of arguments in Procfile/f2e.
refactor the gulpfile: extract glob to one place.
remove the usage of extract-text-webpack-plugin and we can let the watching feature work.
refactor gulpfile: prepare for building stylus for static style.
add static stylus compiling support.
Merge branch 'feature/f2e-rework'
make distribution package with setuptools.
add makefile to make a distribution package quickly.
Merge branch 'feature/f2e-distribution'