More Fixes V2

Main.java:
- Removed getCommand("present").setExecutor(new Teleportation());
- added: 'generate new config.yml file' if it cannot be located. reloads
after creation

PlayersDone.java:
- Created a /present done (player name) command. This will make the list
more organised. Players done will not be on the (soon to be) "/present
playerlist" command.
- added the tpset command to the PlayersDone.java temporarily due to an
issue with having /present on two classes.

Present.java:
- Edited the broadcast message

Teleportation.java:
- removed "/present tpset (player name)" from that class and moved it to
the 'PlayersDone.java' class
- fixed a player.sendMessage message