Update issue 1061
The size of the checksum bytes were wrongly removed twice from the full event size
(see RowsLogEvent :
            if (descriptionEvent.useChecksum())
            {
                // Removing the checksum from the size of the event
                eventLength -= 4;
            }
)
This could lead to the last column not being extracted and replicated.

git-svn-id: http://tungsten-replicator.googlecode.com/svn/trunk@2674 9f5e3340-5c9a-25cb-7c1c-c133a2e9e928