changed __ to _ in order to get access to private methods and attributes
Removed unused method argument in _setTemporaryDirectories()
Adding JModelica compilation and extracting simulation start- and stoptime from .mos
replaced class data by dictionary
Testing compliance in JModelica.org
Merge pull request #13 from saroele/unittest_jmodelica

JModelica compliance check and some code cleaning
Fixed wrong function arguments and removed debug statement.
Replaced call to non-existent function dat.setResultDirectory.
Removed float operator as valueString can have a mathematical expression.
Resolved conflicts.