Fix Show/Hide Labels to allow NULL values in table to work for show value
Merge pull request #424 from slarosa/fix_rubber_band_python_plugins

Fixes rubberBand for extent selection in gdal_clipper and sextante algs
ftools api update (fixes #7130)
Add option to show canvas refresh event in Log Message panel

- In Options at bottom of Rendering tab
- Useful for debugging excessive refreshes from userspace without having to build with debug and filter logs
- Records time taken for refresh and any resolvable sender class
fix #7125
wms: catch service exception on GetFeatureInfo and use feature extent if there's no geometry
wms: improve xsd/gml detection on getfeatureinfo
german translation update
[FEATURE] allow filter expressions in value relations (and fix display of related values and value maps in attribute table)
Update vector layer edits rollback method and app rollback actions

- Make optional whether edit buffer is deleted
- Returns optional functionality where rollback was similar to setting undo stack to index 0
Limit canvas redraws when working with vector layer undo stack

- Fix unreported bug where clicking on group in legend would clear previously selected vector layer's undo stack
- Ensure empty view is created on project load (cosmetic)
Use new vector edit macro support to batch Show/Hide Label tool's operation
fix issues with non-ASCII filenames in GDALTools, thanks to Evgenia for
pointing on this problem
missed comma
Split QgsCollapsibleGroupBox into basic class and subclass that auto-saves collapsed state

- Split authored by Etienne Tourigny
- Add Q_PROPERTY declarations to make some class properties settable for promoted widget in QtDesigner (by Olivier Dalang)
- Update existing .ui files with dynamic properties (but not saveCheckedState, which should be cautiously used)
- Update sip file so both classes are available
Snap to paper items and consider multipage compositions when showing snap lines
Merge pull request #422 from Oslandia/atlas

Feature sorting and filtering for atlas generation
Documentation update for QgsRubberband
Merge pull request #427 from matthias-kuhn/rubberband-doc

Documentation update for QgsRubberband
Add collapse toggling synchronization to QgsCollapsibleGroupBoxBasic

- Holding Alt modifier key when toggling collapsed state will synchronize the toggling across other boxes with the same syncGroup QString value
- Synchronizes boxes of same syncGroup via recursive search in parent or grandparent widget (if grandparent is not QgisApp)