Update create_mysql.sql
Update create_mysql.sql

Added "IF NOT EXISTS" to the create statements so that if the database already exists then a warning will be thrown instead of an error.
ACEmulator/ACE,ACEmulator/ACE,LtRipley36706/ACE,Lidefeath/ACE,LtRipley36706/ACE,LtRipley36706/ACE,ACEmulator/ACE