Created ObserverHandler.java
Uppdaterat klasser

ObserverHandler, Server och ServerConnection
nothing special

minor changes
Lagt till saker i ChatGUI

stuff
observerHandler och ServerConnection update

gjort metoderna i observerHandler synchronizerade samt lagt till en
close metod i ServerConnection utifall man vill stänga anslutningar.
updated comments
ClientConnection.java & Chat.java Update
kommentarer
Prop Changes
updated chatgui
testing port and address
Prop address changes
small changes
githubstrul
git hub strul
new Main
test changes
Updated chat.java

removed mainmethod and created a constructor instead
Changes to chat.java
Changes made to Main and ChatGUI