StreamClear
Overview
StreamClear removes connect/disconnect (reconnect) spam in chat.
Also this plugin allowes customized join-messages and leave-messages.
What makes the difference?
As a server owner, you are most likely aware of those irritating moments where players leave and rejoin the server again and again until the chat is spammed with those yellow "left/joined the game" messages. This plugin does its' best to resolve this.
This plugin only displays a player as "left", once he has been logged off for 6 seconds (default value, configurable). If the player reconnects to the server within 6 seconds of leaving, no messages are displayed because the player is detected as "reconnected".
Also kicked and within 6 seconds reconnected players will not spam the chat unnecessary any more.
Configuration
The config.yml is easy and understandable:
join-message and leave-message are colourable join- and leavemessages with the placeholder %player%
waittime is the amount of seconds, before the player counts as "real" disconnecting player.
FTB / Tekkit ready!
This plugin is ready for Feed the Beast (MCPC+ req.) and Tekkit
Devbuilds 
Development builds of this project can be acquired at the provided continuous integration server. These builds have not been approved by the BukkitDev staff. Use them at your own risk.
Download last stable build