Disable git-prompt, it is too slow and has the annoying screen+password bug

git-svn-id: http://svn.shatow.net/shells@196 ea227b21-592c-dd11-b15d-00012992a58a
Add colored less

Based on http://superuser.com/a/337640/34747

git-svn-id: http://svn.shatow.net/shells@197 ea227b21-592c-dd11-b15d-00012992a58a