Merge pull request #750 from artfwo/master

Fix misc typos and untranslatable strings
Transform layerName for typeName in WFS GetCapabilities
Fix vertical alignment in data defined labeling
catch transformation exceptions in pal labeling (fixes #7730)
test fixes:
* port python test to sip api v2 (fixes #8314)
* introduce compareWkt for more tolerant WKT comparisions in C++ tests
* require UTF-8 locale for regression1141 test on linux
GdalTools: use int to compare versions (fixes #8323)
browser: add credential dialog (fixes #6044)
fix typo
Update to new icon. Fix #6688
debian packaging updates
german translation update
composer: save/restore item groups (fixes #7675)
wfs feature iterator: support ExactIntersect (fixes #8310)
composer item group: fix destruction
fix warning
gml download: fix progress noise
Add missing alpha value option for colour ramps
renderchecker: create world files
topology checker: catch difference error (fixes #7845)
test fixes:
* use compareWkt in PyGeometry nad PyQgsRectangle
* skip PySpatialiteProvider if pyspatialite is unavailable
* show information about used fonts