Minor & Dispersed Python3 Compatibility Issues

[rtruxal]

Fringe cases in class QueryChecker(): & PyMsCognitiveSearch().get_json_results() are the 2 I've seen so far.

Btw!: I'm planning on making an asyncio-based request-engine plugin for your package, & so I'm totally willing to go through and do all the annoying py3 compatibility stuff that 2to3 won't.