Fix Storage rollback test.
Fix Storage rollback test.

There were a couple of missing waitTransaction() calls, which allowed
the test to possibly exit before finishing the test, and therefore not
actually performing the test. Also fix a typo in one of the test
values.

sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata