Prefixes and suffixes according to IRC Modes

For example, you could have ops show as one color ingame, and half ops
show as another. Examples in messages.yml

No modes is represented by `user` in the yml, otherwise, it's the mode letter, i.e `o` for op, and `v` for voice.

IRCd.java has a large diff because Iad to format it with Eclipse's default
format tool, as the strings were getting way too long to read 
when I was adding the .replace() calls.