- Include Apache's CLI lib
- Introduced Starter class to handle bootstrap of program
- Introduced shutdown-methods for all threads
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/de/uni_stuttgart/informatik/mc/team2/assignment1/Client.java
	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