composer legend width fix, fixes #7099
fix maximum field value calculation in vector layer (addresses #7193)
add tooltip to button in sigleband pseudocolor renderer widget
(addresses #7138)
fix Sum line length tool after API changes (fix #7335)
fix Join attributes by location (#7103)
Simplifying QgsOgcUtils

After commit 7d66529d7884b73070dbce80b1d4060d841a6933 Add GML3 to
QgsOgcUtils, I have to simplify this class to only have :
* geometryFromGML : read GML2 or GML3
* geometryToGML : create GML2 (as default) or GML3