BUG FIX - - I get an error while testing on my phone "Unfortunately the
app stopped!". Just browsing, answering and ending a test and start
another (quickly). The app breaks and exists. See if you can get it if
not I will try to send more details.
- test case: select some answers for first questions, end the test,
re-open the same test, don't select any answer, browse to 2nd question,
browse back to 1st question, the answer is now selected because it was
kept from the previous session of the same test. You need to clear the
test memory of given answers once the test is ended.
RESOLUTION:  Added a bug fix to clean up resources once a test has been
ended.