JoinOp
JoinOP is made for private servers made for groups of friends or development servers where everybody needs op. It's useful if you can't get on and a friend joins so they're op and can use commands.
CONFIG
enable: true - enables or disables the op upon join.
broadcast_join: true - Broadcast a message saying "Player has joined and is now OP!".
broadcast_join_message_color: '&6' - Change the color of the message above.
message: '&3Thanks for joining! You are now &4OP&3.' - Sets the message to display upon join of a new OP.
prefix: '&aJoinOp' - Set this to what you want to display in the chat
cool it works in 1.11.2 also!