Add option binary for cursor. When set to true cursor will always try
to use the client/server binary protocol, even when no parameter were
passed to execute.
Fixed default behavior of autocommit: If not autocommit mode was specified,
autocommit will be off by default (see https://www.python.org/dev/peps/pep-0249/#commit).
Added new keyword autocommit for connection class which might have the following values:
- None: use server default setting
- True: turns autocommit on
- False: turns autocommit off
Added optional boolean parameter 'dictionary' for cursor class.
When dictionary parameter was set to true, the fetch operations will
return rows from result set as Dict.
Input/Output or Output parameters have to be retrieved by .fetch methods,
the .sp_outparams attribute indicates if the result set contains output
parameters.
