[pyqgis-console] fix autocompletion in editor after 6e19748
Added current sponsor logos to about screen
[pyqgis-console] fix undo/redo actions when autocompletion bracket is enabled
Bumped version number on splash screen
Initial support for gradient fills
TODO: saving/loading, composer outputs, gradient reference points, tests, rotation, data defined settings
Fix composer outputs with gradients
Fix missing color stops in gradients