[Snapshot] Fix string to long for new json chat system.

If there is about 100 players on server and someone will use /list he will be kicked from server. Becouse Json string is too long.

To fix this we can check string lenght and next send chat packet.

    public void sendRawMessage(String message) {
        if (getHandle().playerConnection == null) return;
        	
        	for (String msg : message.split("\n")) {

        		String JsonMessage = ChatConverter.toJSONChat(msg);
        		
        		if (JsonMessage.length() < 32760) {        			
        			getHandle().playerConnection.sendPacket(new Packet3Chat(JsonMessage));        		
        		} else {       			
        			getHandle().playerConnection.sendPacket(new Packet3Chat(ChatMessage.d(message)));       			
        		}

        	}
    }

32760 is chat limit minus safety number to avoid bugs

P.s.
sorry if something screwed up with the pull request but can not comprehend github