EAGLESIX-2715: minor code changes
EAGLESI-2715: first pass complete
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_expressions_SetIntersection
Merge branch 'feature/mongo_2.6.5_expressions_SetIsSubset' into feature/mongo_2.6.5_expressions_SetIntersection
EAGLESIX-2715: merged and fixed opName in tests
EAGLESIX-2715: all test cases pass
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_expressions_SetIntersection
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_expressions_SetIntersection
EAGLESIX-2715 Reviewed test cases, filled out some missing ones, refectored common code.
Merge branch 'feature/mongo_2.6.5_expressions_SetIntersection' of https://github.com/RiveraGroup/mungedb-aggregate into feature/mongo_2.6.5_expressions_SetIntersection
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_expressions_SetIntersection
EAGLESIX-2715 The expression was inheriting from the wrong base class.
EAGLESIX-2715: removed unrelated changes
EAGLESIX-2715: didn't wamt to change that file
EAGLESIX-2715: adding file back
EAGLESIX-2715 Added a test for null arrays.
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_expressions_SetIntersection

Conflicts:
	lib/pipeline/expressions/SetIsSubsetExpression.js
EAGLESIX-2651: Value: minor fixes for consistency more than anything
EAGLESIX-2651: SetIntersection: better sync w/ 2.6.5 code and tests, add more methods to ValueSet for this
Merge pull request #82 from RiveraGroup/feature/mongo_2.6.5_expressions_SetIntersection

Feature/mongo 2.6.5 expressions SetIntersection