Update gridcalculator.rst

change **x** and **y** with **a** and **b**
Merge pull request #1678 from ghtmtt/patch-2

Update gridcalculator.rst
Revert "Doxygen: do not add "Definition at line N of XYZ.cpp" to each method"

This reverts commit 7ee05afd366cebf3c8f44354067c34223346f835.
debian packaging update (fixes for tests)
Fix expression test

make sure the style file with the color ramp can be copied to the settings path
Fix dual view test

* References commit 51e01d6
* And issue #11529
fix PyQgsVectorLayer test
Fix occasional crash on exit because of statis network access manager

see https://bugreports.qt-project.org/browse/QTBUG-25789
fix regex for getting layer name