Modified 
	- ClientThread
		+ worked on Input Thread
		+ Add sendMessage method
Add
	- Message
	- ProtocolList
	- userData
Modified 
	- ClientThread
		+ worked on Input Thread
		+ Add serverDB method
Merge master into Dev_2

Conflicts:
	.gitignore
	src/Server/ClientThread.java
	src/Server/Server.java
	src/Server/ServerChatroomThread.java