Updated to current version 0.4.0

Changelog:

This should cover all the points up to No. 13. Test classes will still
have to be done.
Added Property group functionality.
Added Jail (sorry).
Clearer representation of who's turn it is.

Known bugs:
Fuel and Electricity don't charge according to die.
After getting out of jail, the cars are positioned at the Launch Unit.
At very few occasions, players get out of prison without paying or
having the correct die.