added State enum to the User.cs and added State enum to the Models
Added State enum in the Models; updated Delete method in the UsersController; added UpdateUserState method in the UserService.cs; updated UserEditVm.cs and fixed test according to the subscribed changes
Edited ICryptoProvider, CryptoProvider and CryptoProviderTest. User has only password's hash with salt. Salt - is a password hash based on MD5 algorithm. Changes in CalendarMembershipProvider, CalendarMembershipProviderTest and CalendarRoleProvider based on CryptoProvider changes.
Merge branch 'master' of github.com:fomaa/Calendar

Conflicts:
	Bs.Calendar.Mvc/Services/UserService.cs
	Bs.Calendar.Mvc/Web.config