Original agent from Fred
removed unused function
beautified version
Added unset_master in pre-promote to allow relay-log to be applied
Merged Fred s work on 5.6 with latest agent.
missing command for master status
missing dollar sign for suppress_56_password_warning
removed crap stuff in set_master, not used by 5.6
missing mysql option -BN in update_data_master_status
somehow forgot the grep GTID_EXECUTED in get_master_status
adjusted events in pre-promote, added unset of master_host in unset_master to force get_slave_info to rerun
forgot another freaking -BN to get the gtid_executed
adding README.md to help differentiate the agents
-m