[ease/libraries] (14 commits) ...Merge branch 'master' into libraries

[Nate Stedman <natesm src gnome org>]

Summary of changes:

  269f7b4... Added Swedish translation (*)
  ecb589e... [editor] Element type-specific inspector panes (*)
  4878ce3... [player] Clip the player's stage. (*)
  45b66d4... [build] Silence C compiler warnings (*)
  83e9425... [editor] Properly quit when the window is closed. (*)
  54fbb9f... [transitions] Tweak "Assemble" transition (*)
  8ad6782... [general] Document, Slide, and Element are now UndoSources (*)
  05cdedb... [editor] Changes made to text can be reverted (*)
  3cd8c6e... [editor] Fixed gradient not updating when type was changed (*)
  174be96... [editor] Fix thumbnails not redrawing. (*)
  b136b4e... [themes] No need to archive themes (*)
  126ca62... [general] Increment version number (*)
  89ce738... [editor] Added gradient angle support. (*)
  4dab19e... Merge branch 'master' into libraries

(*) This commit already existed in another branch; no separate mail sent