Lots of changes regarding file names; for checking who did what, see the previous version.
SwingGUI and WebServer added, but there are still some changes to be made, specially at the WebServer.
Fixed all bugs we found so far in the chat client - chat server interaction.
Revert "Lots of changes regarding file names; for checking who did what, see the previous version."

This reverts commit 13a03d4e1d1561c0c0f37e18cb291c8836851712.
Revert "Revert "Lots of changes regarding file names; for checking who did what, see the previous version.""

This reverts commit a92f45c3af5aebd135614dd3100dee9ca1902ec2.
Merge origin/master into Marek

Conflicts:
	nbproject/build-impl.xml
	nbproject/genfiles.properties
	nbproject/project.properties
	nbproject/project.xml
	src/echoserver/ClientHandler.java
	test/TestClient.java