db: clean up SQLAlchemy session flushes Many calls to Session().flush() were completely superfluous and have been removed. (See also the note on "flush" in the contributor docs.) For the remaining calls, a comment has been added to explain why it's necessary.

pytest>=2.7.0,<4.0
pytest-runner
pytest-sugar>=0.7.0
pytest-catchlog
WebTest<2 # this is also a Pylons dependency and pinned in setup.py to avoid version conflicts for WebOb
mock
sphinx