Made img_size param accessible everywhere & removed get_priority() from IGtkBrowser (already priority() in IPlugin)
Changed callback function of cairo_slider.py to a gsignal
Removed TODO in playlist model, ignore empty user_data in do_get_value
Made plyr queries cancel on shutdown
Made draw_center_text a utility function
Made glade path relative to main.py
Made sidebar controller public as g.gtk_sidebar, implemented switch-to-preferences
Added forgotten/missing util drawing.py
Removed debug prints in libmoosecat
Fixed crash in mc_update_is_a_seek_event (classic NULL Pointer deref)