Improve diagnose.py reusability
Use diagnose module in stt.py and tts.py
Set loglevel at least to info during diagnose run and add '--diagnose' argument to jasper.py
Remove executable flag from diagnose
Transform DiagnosticRunner.run() into a single function
Added docstrings to diagnose functions
Remove unused imports from client/tts.py
Add testcase for diagnose.py's python import check
Merge pull request #210 from Holzhaus/diagnose-improvements

Diagnose improvements