JoinLeaveMsg makes the join/leaves messages customized in a config or you can set them via the command. This is a lightweigh plugin, so it don't cost you so much RAM. Maybe later will this change because it's going to be bigger.

If you find bugs, I'll like to see a tickit with explaining the bug. (Just answer the tickit)

This plugins use Metrics, this collects some information about your server:

A unique identifier
The server's version of Java
Whether the server is in offline or online mode
The plugin's version
The server's version
The OS version/name and architecture
The core count for the CPU
The number of players online
The Metrics version

Tags

%player% - Gets player name.
Want more? Place them in the comments.

Command:

/jlm
/jlm reload
/jlm set join <MESSAGE>
/jlm set leave <MESSAGE>

Permissions:

jlm.reload
jlm.setjoin
jlm.setquit

Features:

Custom join message
Custom leave message
Color Code Support
Reload Config

Config:
The config is simple and small.
You can fine here the default config, and explaining about the config.

To do:

Custom group join message
Custom group leave message
Stop the join/leave messages
Admin join messages (IP in join message)
~~Formatting and Color Code Support~~
~~Reload the config with a command~~

JL-Messages