mysqltest can run without connecting to the manager for tests that do not 
require manager operations


client/mysqltest.c:
  make mysqltest work without having to connect to the manager
mysql-test/mysql-test-run.sh:
  init-rpl-role option to servers
  pass manager-host to mysqltest
mysql-test/r/rpl_failsafe.result:
  updated result
mysql-test/t/rpl_failsafe.test:
  check for Rpl_status
sql/mysqld.cc:
  fixed bad merge
sql/repl_failsafe.cc:
  fixed bug
sql/repl_failsafe.h:
  fixed compile error
sql/sql_show.cc:
  fixed compile error