PathHelper improving.
Tests for UserService without using db.
New tests for UserService added. All marked as "passed".
Refactoring in tests classes.
AlbumServiceTest added, code optimization
Refactoring.
GetPhotos uses isDeleted property.
PhotoCleanupTask. Not tested yet.
AlbumService fix (isDelete property using). Tests changed.
CleanupTask deletes Album, GetAllUsers method in UserService.
CleanupTask fix.
Refactoring.
Refactoring.
Storage class improving.
css fix
Merge branch 'master' of https://github.com/ArtemZag/academy13 into AVi

Conflicts:
	BinaryStudio.PhotoGallery.Core/Helpers/PathHelper.cs
	BinaryStudio.PhotoGallery.Domain/Services/PhotoService.cs
fix merge & change dirs structure
some moved