update readme, realistic agent extends random agent
improved realistic agent
Merge remote-tracking branch 'origin/master' into master-mischa

Conflicts:
	src/main/java/ch/bfh/ti/jts/Main.java
	src/main/java/ch/bfh/ti/jts/ai/agents/RealisticAgent.java
	src/main/java/ch/bfh/ti/jts/data/Agent.java
	src/main/java/ch/bfh/ti/jts/data/Edge.java
	src/main/java/ch/bfh/ti/jts/data/Lane.java