Wampy

- fix links in README
- fix docs build
- fix RTD build
- add sphinx theme
- add additional documentation
- simpler TLS connections

- test coverage for CallProxy
- docs for CallProxy
- remove some dead code
- flakes
- launch message handling in separate gthread
- global pytest features for using wampy as a library
- fix duped logging when using wampy as a library
- optional ``name`` attr on wampy clients

- update setup.py with classifiers and dev status
- fix broken CLI run command
- correct run commands in README.txt

bumped only because out of sync with pypi

Compatibility support for:
- python 3.3
- python 3.4
- python 3.5
- python 3.6

- fixes: missing params on Error msg
- handle no connection established
- separate Yield message from Invocation to allow overriding behaviour by other applications
- simplify message handler class
- improve test coverage