Added :
* An object in moderation mode to kill a player instantly (messages available and modifiable in config.yml: lines 135 and 136).

Modified :
* PlayerManager to add the blaze rod item and modified ModItemsInteract for the kill player item.
* Messages sent on certain moderation items (available in moderation mode), which will also soon be available with commands (vanish...)
* Gamemode messages changed to include numbers (so that creative, adventure... instead of 1,0,2...).

Fixed :
* The gamemode to put a selected player in creative mode (and correct: the gamemode that wasn't available).
* The fly so that when a player or moderator uses this command, they just have to press /fly instead of /fly on or off.