Merge branch 'stable'
Merge branch 'stable'
Merge branch 'stable'
Add "Check for updates" menu entry on Windows.
Report nonexistent directory when updating from sources.
Merge branch 'refs/heads/stable'
Merge branch 'stable'
Move OnWinsparkleCheck() into PoeditApp.
OS X: Remove language choose from preferences.

Now that Poedit picks the right language automatically, there's no need.
Merge branch 'stable'
Add shortcuts to Find window buttons.
Merge branch 'stable'
Add menu entries for Find next/prev commands.

This couldn't be done on the stable branch because of addition of new
strings. Also use a Find submenu on OS X, as is the standard.

See #283.
Nicer formatting of the conversion failure error.
Merge branch 'stable'