+ Grunt compile added with features:
** less to css compile
** ie8\9 less to css compile
** *.css to *.min.css minify
** *.js to *.min.js uglify

Use "$ grunt" for compile or "$ grunt watch" for watching files

+ mbootstrap.xml updated
+ default magento sample Index page updated
** layout fix
** home-spot images responsive update added via .img-responsive() mixin

- custom responsive less files removed. @media now used in less file permanently
responsive rules optimization
some important files added
Merge remote-tracking branch 'origin/bootstrap_3.0.0' into bootstrap_3.0.0