FindQwt.cmake: also detect qwt6 suffixes
Merge pull request #384 from lynxlynxlynx/master

Try to find QWT harder
oracle provider: fix menu entry
Fix python zebra style test
Merge branch 'master' of github.com:qgis/Quantum-GIS
oracle provider: accept number(0) as key
Add descriptive names to message bar levels (from Matthais Kuhn)

- Enum containing INFO, WARNING and CRITICAL
Add groupbox support to attribute editor
Fix #6968, saving/rollbacking edits deselects current editing tool