WL#5370 Keep forward-compatibility when changing

'CREATE TABLE IF NOT EXISTS ... SELECT' behaviour
BUG#55474, BUG#55499, BUG#55598, BUG#55616 and BUG#55777 are fixed
in this patch too.

This is the 5.1 part.
It implements:
- if the table exists, binlog two events: CREATE TABLE IF NOT EXISTS
  and INSERT ... SELECT

- Insert nothing and binlog nothing on master if the existing object
  is a view. It only generates a warning that table already exists.

mysql-test/include/rpl_diff_tables.inc

@@ -33,3 +33,4 @@ while (`SELECT "XX$_servers" <> "XX"`)
   --source include/diff_tables.inc
   connection $_slave;
 }
+connection $_master;