Merge git://ozlabs.org/~paulus/gitk

* git://ozlabs.org/~paulus/gitk:
  gitk: Display important heads even when there are many
  gitk: Improve display of list of nearby tags and heads
  gitk: Fix display of branch names on some commits
  gitk: Update Swedish translation (296t)
  gitk: When searching, only highlight files when in Patch mode
  gitk: Fix error message when clicking on a connecting line
  gitk: Fix crash when not using themed widgets
  gitk: Use bindshiftfunctionkey to bind Shift-F5
  gitk: Refactor code for binding modified function keys
  gitk: Work around empty back and forward images when buttons are disabled
  gitk: Highlight first search result immediately on incremental search
  gitk: Highlight current search hit in orange
  gitk: Synchronize highlighting in file view when scrolling diff