* Improve test_choice_get_my_response() to verify the sorting of the
responses returned by choice_get_my_response().
* Fix correct usage of choice_get_my_response().
If the choice is not available (not open yet), the function must return
false even is CHOICE_SHOWRESULTS_ALWAYS is set to true.
This was failing only in Web Services, in Web that function is not
reached (execution stops when the time open check is done).
1. getMock()
2. setExpectedException()
3. checkForUnintentionallyCoveredCode renamed to beStrictAboutCoversAnnotation
4. beStrictAboutTestSize renamed to enforceTimeLimit
5. UnitTestCase class is now fully removed.