Fixed a MAJOR bug. PLEASE UPDATE ASAP. Fixed Nickname resolving getting into infinite loops:

aused by: java.lang.StackOverflowError
	at java.util.HashMap.addEntry(HashMap.java:888)
	at java.util.HashMap.put(HashMap.java:509)
	at java.util.HashSet.add(HashSet.java:217)
	at java.util.AbstractCollection.addAll(AbstractCollection.java:342)
	at java.util.HashSet.<init>(HashSet.java:117)
	at net.md_5.bungee.BungeeCord.getPlayers(BungeeCord.java:402)
	at net.cubespace.CloudChat.Util.AutoComplete.completeUsername(AutoComplete.java:18)
	at net.cubespace.CloudChat.Command.Parser.NicknameParser.getPlayer(NicknameParser.java:40)
	at net.cubespace.CloudChat.Command.Parser.NicknameParser.getPlayer(NicknameParser.java:45)