Extension:OnlineStatusBar

OnlineStatusBar adds a little bar to user and talk pages of each user, which signalize whether they are available or not, the extension should be available in preferences in the future, so that each user could opt-out from using it.

Installation
First of all you need to create a table which is defined in OnlineStatusBar.sql, you can just execute the file there. Then just add the line:

Configuration
You can insert those to LS:
 * $wgOnlineStatusBarDefaultIpUsers if you want to track also ip users
 * $wgOnlineStatusBarDefaultOnline default online status
 * $wgOnlineStatusBarDefaultOffline default offline status
 * $wgOnlineStatusBarDefaultEnabled if it's enabled for all users as default
 * $wgOnlineStatusBar_LogoutTime