Fix CSV test to support python NULL value
Fix renderer items in legend (#8651)
Remove outdated SIP version requirements from INSTALL
Emit a signal when layer symbology changes
[FEATURE] Holding ctrl while dragging a composer selection temporarily turns off snapping
More cont'ness for QgsDistanceArea
Merge pull request #917 from matthias-kuhn/csv_test_fix

Fix CSV test to support python NULL value