test.integ.control.Controller: assertIsNotNone does not work on Python v2.6 and older

Unittest.TestCase.assertNotNone was added in Python v2.7.[1] The method is used twice in test.integ.control.Controller. The patch replaces those calls with assertNotEquals(var, None).

1: http://docs.python.org/2/library/unittest.html#unittest.TestCase.assertIsNotNone

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Username: Desoxy

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