graphics menu fixed mainly. some more bug fixed.
hi4
Merge branch 'master' of https://github.com/arielbro/ParSurf

Conflicts:
	WpfApplication1/GraphicsPage.cs
	WpfApplication1/InputNumberForm.cs
	WpfApplication1/MainWindow.xaml.cs
	WpfApplication1/ParSurf.suo
	WpfApplication1/bin/Debug/ParSurf - Parametric Surface Visualization.exe
	WpfApplication1/bin/Debug/ParSurf - Parametric Surface Visualization.pdb
hi5?