Add PEP8 automated checks to unittests

- Add PEP8 check to Talk Editor
- Fix Talk Editor source to conform to PEP8
- Add PEP8 check to Report Editor
- Fix Report Editor source to conform to PEP8
- Add PEP8 check to Record Tool
- Fix Record Tool source to conform to PEP8
- Add PEP8 check to Config Tool
- Fix Config Tool source to conform to PEP8
- Add PEP8 check to Frameworks
- Fix framework sources to conform to PEP8
- Add PEP8 check to QtCommon
- Fix qtcommon sources to conform to PEP8
- Add PEP8 check to Controller
- Fix Controller sources to conform to PEP8
- Add PEP8 check to Freeseer Plugins
- Fix plugin sources to conform to PEP8

Fixes #356