SMALLER ON SLAVE FOR 3 NODE TOPOLOGY

Bug#21053163: MIXED BASED REPLICATION LOOSES EVENTS WHEN
RELAY_LOG_INFO_REPOSITORY=TABLE

Problem:
=======
2 level replication M1 -> S1 ->S2 ( S1 is slave of M1; S2 is
slave of S1) replicating a non-transactional storage engine
table (e.g.MyISAM) when set relay_log_info_repository=TABLE;
and binlog rotation occurs in the middle of statement that
was translated to multiple rows, then you loose part of that
events.

When binlog rotation occurs, on S1 not all rows are written
to it's binlog, therefore S2 seamlessly looses part of rows
that were translated from one statement to several rows.

Fix:
===
The above mentioned bugs got fixed as part of BUG#16418100
fix. Adding additional test cases to improve test coverage.