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

* git://repo.or.cz/git-gui: git-gui: Adapt discovery of oguilib to execdir 'libexec/git-core' git-gui: add a part about format strings in po/README git-gui: update po/it.po git-gui: update Japanese translation git-gui: Update swedish translation. git-gui: Update git-gui.pot for 0.11 nearing release git-gui: Update German translation