Merge git://git.kernel.org/pub/scm/gitk/gitk

* git://git.kernel.org/pub/scm/gitk/gitk:
  gitk: Fix linehtag undefined error with file highlighting
  gitk: Fix commit encoding support
  gitk: Fix transient windows on Win32 and MacOS
  gitk: Add accelerators to frequently used menu commands
  gitk: Implement a user-friendly Edit View dialog
  gitk: Improve cherry-pick error handling
  gitk: Make cherry-pick call git-citool on conflicts
  gitk: Make gitk dialog windows transient
  gitk: Add Return and Escape bindings to dialogs
  gitk: Cope with unmerged files in local changes
  gitk: Make "show origin of this line" work on fake commits
  gitk: Unify handling of merge diffs with normal 2-way diffs
  gitk: Make the background color of marked lines configurable
  gitk: Add a menu item to show where a given line comes from
  gitk: Fix some off-by-one errors in computing which line to blame
  gitk: Allow starting gui blame for a specific line
  gitk: Fix file list context menu for merge commits
  gitk: Allow forcing branch creation if it already exists