Removed dependencies on therubyracer, therubyrhino and less. No longer needed since we don't compile Less and their V8 dependency causes problems on some environments.
I've updated main layout file and bootstrap-community JS/CSS files to have the newest theme. Also tabzilla is now integrated.
Merge branch 'removedLessDeps' of git://github.com/unibrew/jbosstools-website into unibrew-removedLessDeps
Fixing the features section on landing page (/index.html)