Changes in model
Merge branch 'master' of github.com:volodymyr-melnychuk/data-service

Conflicts:
	DataService/DataService.csproj
	DataService/IUserService.cs
	DataService/UserService.svc.cs
	Diploma.sln
	Models/InfoStream/BaseStream.cs
	Models/Models.csproj
	Models/User.cs