2.90.3 (unstable):

Gtk:
* Assistant: Added commit().
* Calednar: select_month, mark_day(), unmark_day(): Remove the bool return value.
* ComboBox::popup(): Added optional device parameter.
* Entry: Added im_context_filter_keypress() and reset_im_context().
* IconTheme: Add back get_for_screen().
* Menu: popup(): Add optional device parameter.