add watch and unwatch commands
add watch and unwatch commands

need to document these

perlpunk/git-hub,dagolden/git-hub,perlpunk/git-hub,dagolden/git-hub,dnmfarrell/git-hub,dagolden/git-hub,xdg/git-hub,dnmfarrell/git-hub,xdg/git-hub,perlpunk/git-hub,ingydotnet/git-hub,drbean/git-hub,xdg/git-hub,drbean/git-hub,dnmfarrell/git-hub,drbean/git-hub,ingydotnet/git-hub,ingydotnet/git-hub,dagolden/git-hub,xdg/git-hub