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 a thin python wrapper around mariadb module
- added constansts under mariadb.constants (CLIENT, CURSOR, INDICATOR)
- bench and test are now in testing subdirectory
- updated documentation
