Bukkit

- Added UpdateChecker

• - Can check for updates upon startup (can be turned off in the config file)
  
• - Check through updates through a new command! (/mtp update) (Permission: multitp.mtp.update [Default: Op])
  

- Added PluginMetrics
- Added basic config file (there is only one option [the option to enable/disable checking for updates on startup])

- None