Merge branch 'master' of git://git.kernel.org/pub/scm/gitk/gitk

* 'master' of git://git.kernel.org/pub/scm/gitk/gitk:
  gitk: Fix bug causing Tcl error when updating graph
  gitk: Fix bug introduced in commit 67a4f1a7
  [PATCH] gitk: Show an error and exit if no .git could be found
  [PATCH] gitk: Continue and show error message in new repos
  [PATCH] gitk: Handle MouseWheel events on Windows
  [PATCH] gitk: Enable selected patch text on Windows
  gitk: Fix bug causing the "can't unset idinlist(...)" error
  gitk: Add a context menu for file list entries