Add -t/--timeout/VCPROMPT_TIMEOUT option.
Remove unused import.
Use '--xml' option in svn for easy parsing.
Use signal.setitimer on 2.6+.
Use the right timeout.
Use shlex.split() instead of str.split().
Fix hg code: now displays correct branch name
Don't redefine builtins.
pep8 improvements.
Fix %m/%u tokens for Bazaar.
Add %t format token for git stashes
Respect ".novcprompt" file to disable vcprompt for huge repositories