Added less css for development

Added less files and custom-variables.less for adjusting the color
of almost everything in bootstrap. This will allow instant theme
changes.
Removed un-needed CSS in cpa.css

Removed all the un-needed CSS in the cpa.css file.
Added theme colors to .less navbar

Added the theme variables to the top of the .less files and added them
to the navbar class (non-inversed)
Refine theme colors and apply navbar

Refine less styles and apply to navbar.
New flat design and theme changes
Added skrollr and parallax effect