Hacking Checks for assertTrue/IsNone()

Hacking Checks for assertTrue/IsNone()

This patch adds a hacking check to make sure that assertEquals isn't
comparing the result value to True or None. When developers
use assertEquals(None, return_value) the check will catch it when
pep8 runs and suggest using assertIsNone(return_value) instead.
Similar situations will occur when trying to use assertTrue(True,
return_value).

This patch also makes the necessary changes that get caught by the
new hacking check.

Change-Id: I56cc8121784eee617c09fb4e92b4ebb5877a0553