Avoid calling user32.dll on EditNetSpellChecker, formcommit opens
Merge remote-tracking branch 'upstream/master' into stableMono

* upstream/master:
  converting png images to 32-bit
  GitCommandsTest renamed to GitExtensionsTest. TranslationTest restored.
  Select first staged item if there is no unstaged item.
Merge remote-tracking branch 'upstream/master' into stableMono

* upstream/master:
  Submodule status icon in menu fixed
  Owner fixed for apply stash dialog
  Support displaying submodules status icon