Added styles for grid system

Going to use 12-cols grid with mobile/tablet/normal/wide breakpoints
Merge branch 'master' of github.com:MunGell/wallhack
Getting rid of hardcoded values, moving MQ breakpoints for grid to variables

Also moving column padding to variable
Add public directory and copy jade/css into it

Add .vagrant directory to .gitignore
Moved Harp files from root to public directory on master branch

This commit has some files marked as deleted, but they are actually moved to public folder
Common style changes, navigation css took from Cornerstone2

created a BEM folder to store there all css files for individual blocks