PDI-11006 - REGRESSION: Unable to use multiple variables in fields
What was  done:
1) reverted parsing logic for environmentSubstitute
2) changed CSV related tests relied on parsing logic
in general the issue was introduced by intetion to support variable names
containing special symbols i.e. ${${P_ENCODING}} which is not correct per
Matt's email and should be used %%${P_ENCODING}%% instead
PDI-11006 - REGRESSION: Unable to use multiple variables in fields
Changing umlaut to unicode symbol to make the build encoding independant
Merge pull request #101 from kolinus/PDI-11006

Pdi 11006