* changed asyncio.coroutine syntax to new async def/await

* removed py34 from tox environment

* reverted some changes within entity.py

* -

* reverted changes within bootstrap.py

* reverted changes within discovery.py

* switched decorators

* Reverted change within aiohttp_client.py

* reverted change within logging.py

* switched decorators

* Await lock properly

* removed asyncio.coroutine from test