adding test for rotating array method
adding rotate array method which is broken
adding JTreenode update
merging changes
Merge branch 'master' of
https://github.com/SerialCoderer/j-collections.git

Conflicts:
	src/main/java/com/jcomm/datastructures/CollectionsHelper.java
	src/test/java/com/jcomm/datastructures/CollectionsHelperTest.java