introduce git-recent-branches and git-recent-all-branches
add git status source
add cr to last line
remove exec property
add diff and diff --stat
Merge pull request #1 from byplayer/feature/git-recent-branches

support diff and diff --stat action
Merge remote-tracking branch 'origin/feature/git-recent-branches'

Conflicts:
	sources/git-recent-branches.zsh
Merge remote-tracking branch 'byplayer/git-add'
add git-status short cut