update to CSS styles for Gamma, and allowing to select alternate color schemes. (the blue scheme is still not polished, gray is hot)

fixing sticky-tag issues with D7 starterkit, replacing in README.txt for css, js and preprocess directories

fixing css issues in 960-fluid.css, using hook_css_alter to add the fluid css now rather than trying to overwrite default 960.css, also fixed issue with search grid width on the themed version of the search form.

minor style adjustments, restructuring the theme-settings.php to split the old header section into 3 distinct areas for logo/menu, header regions, and breadcrumb/slogan/search

bug fixes for grid overlay, fluid layouts for 12, 16 and 24 column layouts, enhanced vertical tabs/accordion interface for theme settings

adding support for alternating settings for content zone on front and internal pages, fixing css issue with alpha/omega