Update Relative_distribution_(distance_covariate).rsx
Create Advanced_raster_histogram.rsx
#9094-R: Use ',' and '.' keys similar to '<' and '>' keys
Merge pull request #1048 from ahuarte47/Issue_9094-revival

#9094-R: Use ',' and '.' keys similar to '<' and '>' keys in QgsMapToolNodeTool
[processing] API v2 update fix: returns str obj instead of QVariant one, it occurs when running Processing headless
[processing] set window flags for modeler dialog
cmake: also look for qwtpolar in the qwt include dir
PyQt4Macros.cmake: also check for a prefixed version of pyuic4

fixes the lookup on Arch, which has python pointing to python3
allow for expressions in symbol rotation and scale
the single, graduated and categorised symbol renderers have been
refactored to avoid use of raw pointers (auto_ptr are used instead, they
are deprecated in c++11 but the change for unique_ptr is an easy one and
they clearly state the design intend: exclusive ownership)

2 general use function to quote and unquote strings for/from xml have
been added to qgis.h
changed std::auto_ptr for QScopedPointer
#9060: define global unit conversor
#9060: use QGis::fromUnitToUnitFactor in QgsWmsProvider

 in
#9060: use QGis::fromUnitToUnitFactor in QgsDxfExport

 in
#9060: use QGis::fromUnitToUnitFactor in QgsDistanceArea

 in
#9060: use QGis::fromUnitToUnitFactor in QgsComposerScaleBar
#9060: use QGis::fromUnitToUnitFactor in QgsDecorationScaleBar
#9060: use QGis::fromUnitToUnitFactor in QgsGrassGisLib
#9060: Enable degrees as valid DisplayUnit in QgsOptions dialog
Fix hue/saturation changes for rasters causing debug noise when raster contains transparent pixels
fix warning