- Moved PacketListener from Server/Client to Worker for configuration
updates
- introduced ConfigPacket
- dev: LANSender/LANReceiver
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/de/uni_stuttgart/informatik/mc/team2/assignment1/sender/LANSender.java
	src/de/uni_stuttgart/informatik/mc/team2/assignment1/sender/WLANSender.java
	src/de/uni_stuttgart/informatik/mc/team2/assignment1/thread/Sender.java
- bug fixes
- added some new start commands