Minor Bugfixes:
* Sink-Text overlapped pictogram-element
* Properties @ conditional-relation text has been positioned far to right
* Source first/following-entities @ properties: deviation-type overlapped other settings
* Position of sub-activities was incorrect when merged. Now fixed.

Added a new exception-type (OutgoingCondRelationsExceedPercentage.java), which checks, if the probabilities of outgoing conditional-relations exceed 100%

Deleting simmeta2.ecorediag (can be generated if needed)