Added dummy --manager-port flag, for backward compatibility
  Back port from 5.0, correction of paths to SSL pem files
mtr_cases.pl:
  Removed hard coded exclude list for embedded server
mysql-test-run.pl:
  Set environment variable MYSQL_SHOW, to be used in test cases


mysql-test/lib/mtr_cases.pl:
  Removed hard coded exclude list for embedded server
mysql-test/mysql-test-run.pl:
  Added dummy --manager-port flag, for backward compatibility
  Back port from 5.0, correction of paths to SSL pem files