adding graph api end points
tests completed
implemented all vertices call
implemented all edges call
adding assertion on edges
adding setup and teardown methods
adding methods to list entities
amended
bad approach removed
modifying log level
modifying log level
adding missing dependency to hadoop-cdh4 profile
fixing failing test with correct overloaded function
deleting log4j.properties
changing name to GraphHelper
moving to lineage package
getting list of all entities
Merge pull request #250 from samarthgupta437/samarth

fixing the UpdateAtSpecificTimeTest
methods to delete all entities
unused resources removed