* Switches python generators to use pytest, useNose CLI option added if to allow nose to be used instead
* Adds ensure-up-to-date changes
* Adds setup.cfg to python clients so we can configure nose when useNose=true
* Adds fix for python-aiohttp testing, adds files missing from ensure-up-to-date
* fix java doc for okhttp-gson
* add ci test for javadoc
* fix return type for java doc
* fix warning/error with javadoc
* fix error/warning in javadoc
* fix 2 warnings related to docstring
* remove trailing space for okhttp tmeplate