Complete rewrite! :)

- Completely rewritten API and plugins
- Command handling moved to API instead of in the plugins
- License is now GPLv3!
- Added an info command
- Added a default configuration
- Added a configuration for player tracking and the default player name
- Renamed server list file to 'lines.txt'!
- Change version to 2.0-SNAPSHOT
- Allow comments in 'lines.txt' using a '#'