In the FunctionPlotterApp, the user can now zoom in and out with "+" and "-".
In the GeometryApp, Objects can now be added to the Graph widget. Also, the Graph widget can handle different "modes" now - it has to be initialized with "functions" or "objects". This mode will decide whether to connection the first and last Point of an Object or not.
In the FunctionPlotterApp, the user can now zoom in and out with "+" and "-". In the GeometryApp, Objects can now be added to the Graph widget. Also, the Graph widget can handle different "modes" now - it has to be initialized with "functions" or "objects". This mode will decide whether to connection the first and last Point of an Object or not.
Closes #11