Fix sip for QgsMapLayerActionRegistry
[QgsRelationReferenceWidget] correctly enable/disable set null button, do not disable line edit (already read only), make openForm and mapIdentification public, more documentation
fix QgsMapLayerAction SIP + do not copy features in identify menu (followup 21c81d6f512fa59f4bb4545c087a2bf5154008dd)
[Identify Menu] do not show the layer level if there is a single layer identified
[SIP] add QgsIdentifyMenu
Follow up 21c81d6
Save edit widgets also to QML style information.

Fix #11123
Fix #10752
Load gpl files from user folder to schemes
Add flags for controlling behaviour of color schemes
Fix height of color icon on color buttons in windows
Be a bit more forgiving when reading gpl files which don't exactly follow the specifications
Add timing for plugin loading
Option in color picker dialog to import a gpl palette to a new user scheme
[composer] Initial groundwork for multiframe table item (Sponsored
by City of Uster, Switzerland)
[composer] Option for fixed frame sizes set by multi frame (sponsored
by City of Uster, Switzerland)
[composer] Begin work on calculating rows for QgsComposerTableV2
(sponsored by City of Uster, Switzerland)
[composer] Implement min size method for frames. Minimum height for
first frame in tables is set so that headers are always shown.
(Sponsored by City of Uster, Switzerland)
[FEATURE][composer] Add option to table item to show headers on first
frame, all frames, or no frames (fix #11136) (Sponsored by City of
Uster, Switzerland)
[composer] Fix update of gui controls when table and HTML properties
change (sponsored by City of Uster, Switzerland)
[composer] Don't consider border width in table if border is disabled
(Sponsored by City of Uster, Switzerland)