merging changes
Merge branch 'master' of
https://github.com/SerialCoderer/j-collections.git

Conflicts:
	src/main/java/com/jcomm/datastructures/Graph.java
	src/main/java/com/jcomm/datastructures/ListGraph.java
	src/main/java/com/jcomm/datastructures/MatrixGraph.java