configure: post-release version bump to 2.8.1
authors.xml: Add Bernhard Stockmann
libgimp: don't recurse infinitely in deprecated gimpvectors functions
libgimp: fix docs of deprecated functions
libgimp: don't recurse infinitely in gimp_parasite_detach()
[l10n] Update Japanese translation
Updated Belarusian translation.
Updated Czech translation
Updated Arabic translation
app: make sure Ctrl+E doesn't invoke "Export to" when it's invisible
Fix configure option --with[out]-bzip2
Updated Belarusian translation.
app: fix UI tag matching to always work case-insensitively

Add gimp_tag_has_prefix() and use it in GimpTagEntry when completing
patrially entered tag names, and fix two uses of strcmp() in
GimpTagPopup to use gimp_tag_compare_with_string().
(cherry picked from commit 30b4fe85105d80bfc67901711a6c54a0561d4a5d)
app: don't call gimp_image_flush() when cancelling GimpImageMapTool

because the tool might be cancelled from some other place opening an
undo group, so flushing the image would update menus and whatnot while
that other operation is running, with unforeseeable side
effects. Also, flusing the image here is not needed because we didn't
change anything in the image. Instead, make sure manually that the
display is updated correctly after restoring GimpImageMapTool's
temporary editing.
(cherry picked from commit e7e8c9ef0a7e94413151a4eaffc3824b4ec7467c)
Updated Korean translation
AUTHORS: commit generated file
Fix Catalan translation for “tags-locale”.
app: make GimpContainerPopup transient to its parent toplevel

so it doesn't appear under the dock it's invoked from. Only
needed on OSX, but the right thing to do on all platforms.
(cherry picked from commit 3545140ad870139c66e011e0c2939fd35ad7d883)
Updated Czech translation
Bug 630173 - a dockable open from an existing one appears under it

Show the new dock with gtk_widget_show_now(), which waits until it's
mapped, then call gdk_window_raise() explicitly. How sick...
(cherry picked from commit bd3f892f7973a13e370b77898fe98b4c8be5e72c)