Merge branch 'master' of git://repo.or.cz/git-gui

Merge branch 'master' of git://repo.or.cz/git-gui

* 'master' of git://repo.or.cz/git-gui:
  git-gui: Honor TCLTK_PATH if supplied
  Revert "Allow wish interpreter to be defined with TCLTK_PATH"
  git-gui: Display the directory basename in the title
  git-gui: Brown paper bag fix division by 0 in blame
  Always bind the return key to the default button
  Do not break git-gui messages into multiple lines.
  Improve look-and-feel of the git-gui tool.
  Teach git-gui to use the user-defined UI font everywhere.
  Allow wish interpreter to be defined with TCLTK_PATH