Testing of SqlServer
Added import for pyodbc and tweaked squallserver.py
SqlServer creating table and deleting it on test tearDown.
Driver connections and connection argument parsing has been changed
to **kwargs, which is good for adding in unlimited parameters on each
driver so they only take what they need without erroring out or 
requiring a lot of explicit parameters.

Issue created on github for standardized input of data to convert to
sql commands run on each driver. TODO.