task_3
task_6
task_7
task_16
small fix
Merge branch 'green'

Conflicts:
	rofp labs.suo
	rofp labs/MainWindow.xaml
	rofp labs/MainWindow.xaml.cs
	rofp labs/obj/Debug/App.g.i.cs
	rofp labs/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
	rofp labs/obj/Debug/MainWindow.g.i.cs
	rofp labs/obj/Debug/TempPE/Properties.Resources.Designer.cs.dll
	rofp labs/obj/Debug/rofp labs.csproj.FileListAbsolute.txt
	rofp labs/obj/Debug/rofp labs_MarkupCompile.i.cache
one more small fix