Fix margins for expressionbuilder on gnome
Add set of default colors for custom color palette
Add method for editing color scheme colors
Add method for finding matching schemes from a color scheme registry
New GUI control for an editable list of colors from a color scheme.
Supports drag and drop reordering, drag and drop colors from external
apps (on supported OS).
[FEATURE] Project specific color scheme, set through default styles tab in project properties
fix windows build
indentation update
german translation update
[TRANSUP] next update transifex and source

Signed-off-by: Werner Macho <werner.macho@gmail.com>
revert german part of 62200eb55
Support dropping multiple colors into a color list widget
Improvements to color list:
- Cleanup code
- Support copying and pasting multiple colors to list
- Support additional color list mime formats
Allow importing and exporting to GIMP palette file (gpl) from color list
Fix typo
indentation update
doxygen fixes
fix polygon generalization artifacts, if last ring segment is one of two
segments exceeding the tolerance plus some cleanups
rename other canbeGeneralizedByMapBoundingBox methods to isGeneralizableByMapBoundingBox