Merge git://repo.or.cz/git-gui

Merge git://repo.or.cz/git-gui

* git://repo.or.cz/git-gui:
  git-gui: correct spelling errors in comments
  git-gui: add menu item to launch a bash shell on Windows.
  git-gui: corrected setup of git worktree under cygwin.
  git-gui: right half window is paned
  git-gui: Add gui.displayuntracked option
  git-gui: show the maxrecentrepo config option in the preferences dialog
  git-gui: added gui.maxrecentrepo to extend the number of remembered repos
  git-gui: Improve font rendering on retina macbooks