#21 and #10

[XayOn]

General cleanup and update. In the last 7 months aiohttp has grown quite a lot.

- Fixed PEP8
- Removed lots of duplicate code
- Updated to aiohttp 2.2
- Removed backwards compatibility pre-python3.5
  to use aiohttp's async with functionality and async def, much clearer syntax
- Using new aiohttp startup methods and signals
- Added TODO entries regarding login methods
- Removed old-and-unused debian files
- Fixed client style
- Moved documentation outside, deprecated websocket client library

I'm planning on adding individual websocket handling (by session or by a self-assigned id in authless use cases) and an aiohttp websocket client example soon. This PR lacks a lot of testing, does major changes and breaks things.

I've not added tests nor sphinx doc because I first wanted to see your opinion on the current PR, @neolynx

[neolynx]

Hi XayOn,

that is a lot in pull req!
see my comments below:

• Fixed PEP8
• Removed lots of duplicate code

great!

• Updated to aiohttp 2.2
• Removed backwards compatibility pre-python3.5
  to use aiohttp's async with functionality and async def, much clearer syntax

not great, cirrina is still used pre-python3.5 and where aiohttp 2.2 is not available

• Using new aiohttp startup methods and signals

I suppose this breaks compatibility with older aiohttp versions?

• Added TODO entries regarding login methods

great!

• Removed old-and-unused debian files

hmm. who said they were unused?

• Fixed client style

great!

• Moved documentation outside, deprecated websocket client library

backward compatible?