refactoring
Merge branch 'master' of https://github.com/dzigerlig/CDAR.git

Conflicts:
	src/main/java/cdar/bll/manager/consumer/ProjectNodeManager.java
	src/main/java/cdar/bll/manager/consumer/ProjectSubnodeManager.java
	src/main/java/cdar/bll/manager/producer/NodeLinkManager.java
	src/main/java/cdar/bll/manager/producer/NodeManager.java
	src/main/java/cdar/bll/manager/producer/SubnodeManager.java
	src/main/java/cdar/pl/controller/consumer/ProjectNodeController.java
	src/main/java/cdar/pl/controller/consumer/ProjectNodeLinkController.java
	src/main/java/cdar/pl/controller/consumer/ProjectSubnodeController.java
	src/main/java/cdar/pl/controller/consumer/ProjectTreeController.java
	src/main/java/cdar/pl/controller/producer/NodeController.java
	src/main/java/cdar/pl/controller/producer/NodeLinkController.java
	src/main/java/cdar/pl/controller/producer/SubnodeController.java