improvements to mixins file
added border box property to container elements to fix padding bug
removed previous commit. containers should have border-box applied. added to readme to mention a known limitation when nesting grids within push/pull cols
aded package.json and gruntfile
minor refactoring to fix some small  issues that occured when we switched from comfortablyone to moonfuse
fixed a broken link in the index.html file
Merge branch 'gh-pages' of github-moonfuse:Moonfuse/rgrid into gh-pages