Merge pull request #4 from lumannnn/choose-a-car

Choose a car
Start activity has now button play sound
Now with better comments
changed compiler setting from java 1.7 to java 1.6 because of android issues
server side checkpoint generation
Prepared MapComponent to draw checkpoints
First implementation of serial car communication
Merge branch 'master' of github.com:lumannnn/AudioRacer

Conflicts:
	AudioRacer-Core/src/at/fhv/audioracer/core/model/Map.java
	AudioRacer-Server/src/at/fhv/audioracer/server/WorldZigbeeMediator.java
	AudioRacer-Server/src/at/fhv/audioracer/server/game/GameModerator.java
Fix for last commit.
Fix 2 for last commit. CarDetectedMessage now contains initial position and direction.
Fixed AffineTransform in MapComponentSkin.java
Server side car movement monitoring via GUI.
Pass "--gui=false" to server application if you don't want the GUI-monitor on server side.
A strange behavior occured during development. During WorldSimulatorWindow startup my eclipse pauses each time at a specific point in Class binary, please refere to the attached screenshot (I have to press continue then and execution went on).
Is this the case on your machines too?
Server side checkpoint monitoring via GUI.
- added SelectFreeCarAsyncTask and corresponding SelectCarParams, ISelectCarListener.
- implemented 'SelectCar'
Merge branch 'master' into choose-a-car