modified GraphDatabase to not be dependent on Hello class
Added cost for trust edge and subject.
Fix unit test regression, need to migrate unit tests to new database
loading
Implemented database calls for citation, Email, TrustEdge, User. Awesome skillz commit.
modified GraphDatabase to not be dependent on Hello class
Merge remote-tracking branch 'nate/software-testing' into software-testing
Fixed user constructor and added check for user exists in create session. Added node creation constructor for User
Merge branch 'merge' into software-testing

Conflicts:
	src/app/User.java
Merge remote-tracking branch 'upstream/software-testing' into software-testing

Conflicts:
	src/app/TrustEdge.java
Merge remote-tracking branch 'nate/software-testing' into software-testing
Fixed Session constructor usage
Merge remote-tracking branch 'nate/software-testing' into software-testing