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

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

* git://repo.or.cz/git-gui:
  git-gui: adjust the minimum height of diff pane for shorter screen height
  git-gui: fix use of uninitialized variable
  git-gui: store wm state and fix wm geometry
  git-gui: Ensure submodule path is quoted properly
  git-gui: fix diff for partially staged submodule changes
  git-gui: Update russian translation
  git-gui: Limit display to a maximum number of files
  git-gui: remove warning when deleting correctly merged remote branch
  git-gui: Added Greek translation & glossary
  git-gui: display summary when showing diff of a submodule