Moving openshift-icon to a partial and including in common so that mixin...

... can be applied and other styling changes

Created a mixin for text-overflow .truncate and used with aliases list
Created markup for header button usage of add/create function
Switched individual application page from using sprite images to icon font
Swiched application list to use right arrow icon instead of sprite
Removed bottom positioning of icons with h1,h2 b/c when used with truncate the overflow:hidden cut the tops off.
A couple of variables added for colors