Bukkit

Beta 0.1
+ Doors and Trapdoors get closed after ending the game
+ Checks if Arenas are intersecting

Beta-0.3
+ Uploaded Source
+ Added Language Support
f Minor Bugfixes (don't know exactly which)
f Fixed some typos

Beta-0.4
f language file now gets correctly saved (config.yml)
f language placeholder-filling bug fixed ("Successfully joined arena %s")
+ Permissions added (look at Commands-Page for near information)
+ Command to force an update of the language file ('/cm forcelang')
+ Chests can't be opened during arena fights
m Many performance tweaks
f Enabling/disabling arenas now work properly.
f A game is now ended properly (announcing the winner, reset player)
+ Rejoining (with the same score) is now possible
f Players now stop burning after dying
f Scoretable now is correctly sorted
+ Scorelimit!! added (Default: 25)
+ Scoretable now shows the Scorelimit
+ Added a commandlist if you input an unknown subcommand (not multi-lang)
+ Added German translation (local_DE.lang)
m Change some translations! Use /cm forcelang to update your translations

Beta-0.5
Bug Fixes updated to 1.7.9 R0.1