Made text size in data objects scalable and used that for primary keys, foreign keys, and operation types.
Merge branch 'bpmn_data' of https://github.com/BPMNData/camunda-modeler into bpmn_data
Merged AddDataFeature.java

Conflicts:
	org.camunda.bpm.modeler/src/org/camunda/bpm/modeler/core/features/data/AddDataFeature.java