Remove node env param in package.json
ruoran: add validate commit message scripts
ruoran: remove comments in script
[fix]Qiu&Zekai: remove node-inspector grunt task

node-inspector grunt task will make the watch task
fail, not sure what's going on there. If you want 
to use it, please install `npm install -g node-inspector`.
[fix]Qiu&Zekai: fix liverload bug

because we did not open 35729 port from vagrant so 
that liverload server is not accessible from outside.
[fix]Qiu: use bower to manage pure and font-awesome.
[fix]Qiu: add debug line numder to compiled css file.
[feature]Qiu: refactor the style structure

1. re-structure the style as per the component
2. add variables and mixins
3. clean the html structure

not finished. TBD