Created by: jackieshaffer
Currently there is only a dummy @primaryButtonColor variable in variables.less, however it is not called from patterns.less. This updates patterns.less to pull from primaryButton Variable color
Sidebar width is currently statically set at 240px; Added a new variable @sidebarWidth; to allow user to specify sidebar width; Scaffolding.less has been updated to use @gridGutterWidth variable instead of the 20px static.
I also wanted to make sure the width of the sidebar stayed true to the width set by the variable So the content div will contract for padding/gutters and not the sidebar (as it is currently set to).
For example, if you set your sidebar width to 300px and place a 300px wide ad in the sidebar, I wanted to make sure the sidebar inner width was actually 300px and not 280px, which it will do now.