Finish v0.1.2
Update README
Add travis ci config file
Use ruby instead of node as the main language
Manually do `npm install` as the project is no longer a node one
Update package.json to add repository info
Add travis ci icon
Optimize grunt
reorder gruntfile configs
Update the travis config accordingly
more adjustment of travis config
Add NameSpace to fix #7
update version number
update changelog
Finish v0.2.0