MySQL Update #1

- Moved all character storage from other plugins to Gildorym. Other
plugins will now have a direct dependency on Gildorym.
- Moved GildorymCharacter wrapper class and MySQLDatabase to Gildorym
- Added PlayerJoinListener to keep database up to date
- Updated RollInfoCommand and Gildorym.java to remove references to
non-existent storage in other plugins
- TODO: Gildorym.loadCharacter(Player player)
- TODO: Update NewCharacterCommand.java to generate a new character in
the database
- TODO: Gildorym.onDisable() must update the database with any changes
made to the active character map