Get code base back in shape and made some minor additions

Hello,
I've started to get code base towards to CSS 3.0. Made SConstruct script more usable and removed warnings. There is also fix for handling http://fortawesome.github.io/Font-Awesome/ CSS correctly (little bit hack sorry) where you need double src:url entries. I also Enabled More warnings to get rid of compiler errors.

Minor stuff mainly for sure..