behavior as that of :class:`.mysql.ENUM`.  Quotes are not required when
setting up the value, but quotes that are present will be auto-detected
along with a warning.  This also helps with Alembic where
the SET type doesn't render with quotes. [ticket:2817]

actual mock objects from the mock library.  I'd like to use mock
for new tests so we might as well use it in obvious places.
- use unittest.mock in py3.3
- changelog
- add a note to README.unittests
- add tests_require in setup.py
- have tests import from sqlalchemy.testing.mock
- apply usage of mock to one of the event tests.  we can be using
this approach all over the place.

- went through examples/ and cleaned out excess list() calls

    accepts "fst" argument which is the new
    "fractional seconds" specifier for recent
    MySQL versions.  The datatype will interpret
    a microseconds portion received from the driver,
    however note that at this time most/all MySQL
    DBAPIs do not support returning this value.
    [ticket:2534]
- attempted to modernize the types tests in test_mysql a little, though has a long
way to go

become an externally usable package but still remains within the main sqlalchemy parent package.
in this system, we use kind of an ugly hack to get the noseplugin imported outside of the
"sqlalchemy" package, while still making it available within sqlalchemy for usage by
third party libraries.