small update of the UI of the symbollayers widgets
Fix html labels rendering before they are fully loaded. Prevents missing images in html labels when composer layout is output for the first time.
Merge pull request #513 from olivierdalang/SymbolLayerWidgetsUISmallUpdate

small update of the UI of the symbollayers widgets
Change point displacement renderer to work with new vector api
Merge pull request #511 from nyalldawson/html_labels_fix

Fix html labels rendering before they are fully loaded...
[sextante] escape filenames, passed to GDAL tools (fix #5923)
[sextante] fix parameters handling in some GDAL algorithms
[sextante] increase max and min limits for numeric values (fixes #7143
and possible similar issues)
[sextante] allow non-ASCII characters in string parameters
[sextante] allow set field length and precision in Add field algorithm
[sextante] don't run models without algorithms and/or parameters
gdal set output no data fix
GRASS direct no data for type
QgsRasterBlock::Range to QgsRasterRange
Update recent symbology widget update for cross-platform consistency

Also:
- Keep color wells from over expanding
- Group color wells together, where appropriate
- Make SVG Groups view wider (was too thin)
[FEATURE] Add drop shadow to labels

- Add option to show debug rectangles for shadows to PAL engine properties
- Add small container class, QgsLabelComponent, for temporal values during generation of label components
Added label text shadow support and better debug rectangles