Some servers are having an issue with 1.4.2 where all their players walk extremely slowly or the world is upside-down.
This issue is documented below, although it seems rare.
https://bukkit.atlassian.net/browse/BUKKIT-2772
This plugin is a quick-and-dirty fix for the issue.
Simply sets players to the default walk-speed, not sneaking, and not sprinting at login.
Players only need to join once, and the effect will be permenant.
If you have a small number of players, if they all join once, you can remove the plugin and the effect will remain.
BitBucket Repo: https://bitbucket.org/ioncann0ns/walk-speed-tempfix/overview
