modified test cases/query processor during team session
Added some test cases for backend.py
Merge branch 'osms-queries' of https://github.com/ucsc-hp-group/swift into osms-queries

Conflicts:
	swift/metadata/backend.py
	swift/metadata/utils.py
	test/unit/metadata/test_backend.py
Merge branch 'osms-queries' of https://github.com/ucsc-hp-group/swift into osms-queries

Conflicts:
	test/unit/metadata/test_backend.py
Attempt to fix the queries function
Revert "Fixed a lot of PEP8 and flake8 errors"

This reverts commit 79dc68422d153ab2ad2c526912d5ebb8db5d5b4a.

Conflicts:

	swift/metadata/backend.py
Revert "Added some test cases for backend.py"

This reverts commit 8682db96c896424ef619fc892ec1ad6fa68e64c6.

Conflicts:

	swift/metadata/backend.py
	test/unit/metadata/test_backend.py