Allow for multiple groups / tests.
Fix error when summary was taken for a crashed test.

This used to occur when debugging. For some reason, the
test run summary was parsed as test group / test case
and considered "crashed" :-(.
Merge pull request #6 from arstrube/multiple

Allow for multiple groups / tests.
Merge pull request #7 from arstrube/fix-debug-error

Fix error when summary was taken for a crashed test.