WIP
Merge branch 'master' into colour_functions
Colour functions and en-US help files implemented.
Fixed indentation in qgsexpression.cpp
Code name consistency fix and unit tests for functions
[sextante] added commander
Merge branch 'master' into colour_functions
Merge pull request #531 from ccrook/colour_functions

Colour functions
Small cleanup for e0838b0
Fix for #3743, georeferencer: can't set map coords from map canvas on Mac
[sextante] fixed error due to wrong import
[sextante] add missed CMakeLists