added autogeneration of getters, using the enum value
fix autogeneration of setter for Change{Double,Integer,String}Q
tests and examples now use simple getters/setters
fix failing testSetPOIColor()
JUnit tests no longer need SUMO_EXE_PROPERTY to be set

see commit ecfa57eed516a0845df674e2d2b65f731f61e574
fix API level test for SUMO 0.18.0
Merge branch 'master' into simple-query