--local-master option in mysql-test-run
do not log CREATE TABLE when doing table dump
fix replication to slave off 3.23 master


client/mysqltest.c:
  fix to be able to use env vars for socket and port in connect
mysql-test/include/master-slave.inc:
  connect to port specified in environment
mysql-test/mysql-test-run.sh:
  added --local-master option - will assume master is on port 3306 on localhost
sql/log_event.cc:
  fixes to slave off 3.23 master
sql/log_event.h:
  fixes to slave off 3.23 master
sql/slave.cc:
  do not log CREATE TABLE when doing table dump