Implamentation ConfigSetting with some error.
Implamentation of ConfigSetting.
Improved quality icon configs.png for ConfigSetting.
Validation BeginAt for MatchSetting.
Made refactoring for ConfigSetting.
Refactoring in Settings.
Merge branch 'Ivnst-dev'
Merge branch 'origin/os-optima'

Conflicts:
	DATS_Solution/DATS.csproj
	DATS_Solution/Views/MatchSetting/Create.cshtml
	DATS_Solution/Views/MatchSetting/Edit.cshtml
Improvement of the method validation for the field BegitAt in MatchSetting.
Merge branch 'origin/Ivnst-dev'

Conflicts:
	DATS_Solution/DATS.csproj
	DATS_Solution/Models/ModelsView/SellingView.cs
	DATS_Solution/Views/Sector/Confirm.cshtml
Merge branch 'origin/os-tdd'
Changed titles in some settings pages.