property and implementation of saveToFile
no need to have it
implemented some methods and fixed errors

implemented LoadFromFile in FileHandler
fixed some errors
Merge remote-tracking branch 'origin/ashish-car'
several changes

In Crossing.CS:
-added attributes _entered and their properties;
-added attribute probWtoE and its property (we forgot about this one!)
-changed reset() so it clears all cars in the crossing's streets.
In Car.cs:
-added a Crossing attribute and its property
-Made all attributes private
-made all properties public
-deleted doubled comments
In Grid.CS:
-implemented timeTick() method (still has to be tested)
-implemented reset() method
changes in grid.cs

-changed addCar() to addCars(Crossing c);
-replaced some code from timeTick() to addCars(Crossing c);
-changed some comments and summaries
Draw car changes

Necessary changes to the Car and Street class, and also implementation
of the GUI class
Fix merge problems

Maybe we screwed the car class
Merge remote-tracking branch 'origin/Groversi'
Changed streetindex atribute of Car

Changed it from int to int[2]
Draw function

Implement the Draw function on the GUI class
fixed addCar(Crossing c) in Grid.cs
Add conditions for the second crossing

Add conditions to make possible to draw cars on the second grid
Merge branch 'master' of https://github.com/fontys/Pro-CSharp
too many changes to specify
removed action in simulation controller
Make program draw cars

Necessary changes to make the draw method work
Merge branch 'master' of https://github.com/fontys/Pro-CSharp
changes in file and grid functionality

-moved file bitmap1.bmp to debug folder.
-now the grid doesnt put the cars into the grid anymore.
Add CarBitmap to Resources.resx