Module separator for variable SALOME_MODULES_ORDER is changed from ',' to ':' because...

Module separator for variable SALOME_MODULES_ORDER is changed from ',' to ':' because it is processed in parseConfigFile.py (KERNEL)
and ',' is a separator: duplicates are removed with a sequence "split, set, join" and the set let the variables in a random order.
When we have SALOME_MODULES_ORDER=SHAPER,GEOM,SMESH we can get SMESH,GEOM,SHAPER as a resulting order and the dump is wrong.
We must now write:
SALOME_MODULES_ORDER="SHAPER:GEOM:SMESH"