Move unenclosed HTML classes from mixins.scss

This will allow the mixins sheet to be imported to other sheets without
adding classes automatically.
Positioning of the classes is poor right now, I just wanted the outputs
to match exactly
Merge pull request #1102 from nschonni/move-elements-from-mixins-scss

Move unenclosed HTML classes from mixins.scss
text updates to grid documentation
Merge pull request #1113 from cfarquharson/v3.0

text updates to grid documentation
Added a plugin for integrating DataTables and added ability to dynamically load a CSS dependency.
Fixed main comment block of raphael.js and colorbox.js so kept after minification.
Merge branch 'master' of github.com:wet-boew/wet-boew
Resolved merge conflict.