Solved some bugs, reverted to the old way of drawing points on the canvas
(each point as an independent Ellipse object), fixed gradiant coloring
(thanks Rony).
Merge branch 'master' of github.com:arielbro/ParSurf

Conflicts:
	WpfApplication1/Classes/CanvasGraphics.cs
	WpfApplication1/Classes/ViewPortGraphics.cs
	WpfApplication1/Forms/FormulaInputForm.Designer.cs
	WpfApplication1/Page3D.xaml.cs