Implemented CSRepositoryBase.
Merge branch 'develop' into feature/generic-repositories
Subclassed all repositories from RepositoryBase<T>.
Merge branch 'feature/generic-repositories' into develop
Temporarily disabled Dropbox data implementation.
Renamed CSRepositoryBase to CSRepository.
Refactored CSRepository to make use of CSStorer.
Moved some files around and removed the Interface group.
Renamed CSSpendingModel to CSSpending and refactored repository.
Implemented Dropbox repositories for categories/labels using the storer model.
Implemented Dropbox repository for spending using the storer model.
Moved the CSStorer class.
Added and implemented CSSpendingStorer.
Removed all DataSource classes.
Merge branch 'feature/data-refactor' into develop
Added App.storyboard and basic spending screen.
Added picker screens for category/label.
Added date picker screen.
Merge branch 'feature/setup-storyboard' into develop
Basic implementation added for the spending controller.