Changed 'transactions' model unit test NOT to be executed for MySQL

API_TESTS = """

>>> from django.db import connection, transaction

"""

from django.conf import settings

building_docs = getattr(settings, 'BUILDING_DOCS', False)

if building_docs or settings.DATABASE_ENGINE != 'mysql':

    API_TESTS += """

# the default behavior is to autocommit after each save() action

>>> def create_a_reporter_then_fail(first, last):

...     a = Reporter(first_name=first, last_name=last)