Removed unused imports

Removed the following redundant imports:

* from pandas.io.json import json_normalize
* sys
* time

Reordered imports to PEP8 standard
Renamed Primary file

I think that we should rename the primary file
Sea-of-BTC-Trade-Client.py before the software is moved to a new
architecture to prevent confusion.
Merge pull request #4 from pjhampton/master

Removed unused imports. Reordered