finished code for GraphIndex.java
Created AdjacencyRecord.java and NeighborNode.java and used them in
Graph Index.java
wrote graphIndex and added adjacencyRecord and NeighborNodeRecord
Merge branch 'master' of https://github.com/sbjanani/GraphDatabase.git

Conflicts:
	GDB/src/com/gdb/datastore/test.java
Merge branch 'master' of https://github.com/sbjanani/GraphDatabase.git
blah blah