Resolve:
- no-else-return
- useless-object-inheritance
- useless-return
- consider-using-set-comprehension
- consider-using-in
- logging-not-lazy
Ignore:
- not-an-iterable - false possitives for asyncio coroutines
Ignore all the above in qubespolicy/__init__.py, as the file will be
moved to separate repository (core-qrexec) - it already has a copy
there, don't desynchronize them.
Pylint deprecated-method report interferes with asyncio.ensure_future
compatibility monkeypatch. The function asyncio.async was renamed
between 3.4.3 (fc23) and 3.4.4 (what is currently on Travis). For
reference, debian stable has 3.4.2.
