Saving Category with Media works.
Edit Category form created.
Partial model class to adding method to delete media file.
Minor changes
Implementation of the validation via partial class, annotations and jquery validation.
New Database Engine.
Merge branch 'Arnaud-Dev'
Merge branch 'master' of https://bitbucket.org/amorel/eshoplab

Conflicts:
	eShopLab/Areas/Admin/Views/Category/Create.cshtml
	eShopLab/obj/Debug/eShopLab.csproj.FileListAbsolute.txt
	eShopLab/obj/Debug/eShopLab.csprojResolveAssemblyReference.cache
Create Product controller.
Change database. Adding table ProductSizeCategory. Modify VATCategory => SizeCategory.
Correct bug.
Recreate Product controller.
Create SizeCategory & UnitType controller.
Seed database with category size & unit type.
Implementation JQuery Validation with SizeCategory & UnitType.
Change menu.
Minor corrections.
Display title.