Make all server messages configurable

[IDragonfire]

Localization support was already discussed:

Built-in Localization support and message formatting

I think localization is important. I’m from germany and there are many servers with german chat, and plugins should be localized as well. It would be nice to have a simple system for translation and maybe even a unified message (color) formatting system, making translation of big text-heavy plugins simple. I thought about it when making Bukkit plugins, and i think it should work like gettext. The good thing about it is that the code is still readable, without placeholders for messages like “PL…