Now, every transaction (including autocommit transactions) starts with
a BEGIN and ends with a COMMIT/ROLLBACK in the binlog.
Added a test case, and updated lots of test case result files.
This patch corrects errors that occurred in a local manual merge.
It adds the originator column in the results of the SHOW EVENTS command
for a series of tests.
The only code change is to correct references to the classname in
enums.
