Big Update!

Added:
- Advent.yml file to save players who have done the daily advent.
- Locations.yml file to control the saved locations of presents
- SettingsManager.java - to generate, reload, load, read/edit etc both
Locations.yml and Advent.yml Files.
AutoAnnounce.java - Auto-announces a message to the server every 30
minutes. Can be toggled on/off anytime and the broadcast message can be
force shown anytime.
- Advent.java  - daily advent. (The prizes will be fully set in the next
update, currently day 1 to day 10 is random. day 11 to day 25 is just
Diamonds)

Removed:
- Announcement.java - Changed to AutoAnnounce.class because it contains
the auto announcement as well as the manual announcement.
- in the config.yml file 'Locations:' was removed. The locations save in
it's own file. (Locations.yml)

Other:
- added new commands to the help list and the plugin.yml file
- Fixed small bugs in PresentCommands.java. If a players hasn't got a TP
location set, staff cannot do /present done (player name) until the
location has been set