Session initialization fails in functional test cases
A functional test case relying on the session framework fails with the following error:
Fatal error: Call to a member function setCookie() on a non-object in TYPO3_Flow_Session_Session_Original.php on line 236
[BUGFIX] Fix session usage in functional test cases
This fixes a bug in the FunctionalTestCase which resulted in a fatal
error in Session->start().
Testable HTTP is now always enabled. The enableTestableSecurity() method
(deprecated since 1.1) has been removed as well.