添加测试类，并解决测试过程中遇到的bug
Merge branch 'develop' of https://github.com/FoxBPM/FoxBPM.git into
develop

Conflicts:
	modules/foxbpm-engine/src/main/java/org/foxbpm/engine/impl/bpmn/parser/BpmnBehaviorEMFConverter.java
	modules/foxbpm-engine/src/main/java/org/foxbpm/engine/impl/bpmn/parser/BpmnParseHandlerImpl.java