Clean up structure of conman.routes.handlers

[meshy]

it seems a little confusing.

[LilyFoote]

Currently we have in routes/handlers:

• __init__.py - base.BaseHandler and simple.SimpleHandler
• base
  • __init__.py - BaseHandler
• simple
  • __init__.py - SimpleHandler
  • urls.py
  • views.py - simple_route_view

I think this would be a clear improvement:

• routes/handlers.py - BaseHandler and SimpleHandler
• routes/simple
  • urls.py
  • views.py - simple_route_view

[meshy]

Much better :)