Add basic project with ReactiveCocoa and 500px api.
Add demo up to working gallery from 500px.
Make cells 145px.
Working full screen images.
Add signal for delegates on gallery.
Using RAC binding macro for retrieval of photos.
Remove explicit subscription property from cell subclass.
Remove photo importer download callbacks with signals and binding macros.
Use async request signal.
Use signal in lieu of async NSURL connection.
Create README.md
Update README.md
Update README.md
Housekeeping at beginning of MVVM chapter.
Add view models for gallery and full size image vcs.
Must create gallery view model first, launching fetch before subscribing
to signals.

If you don't do it in this order the gallery images don't load.
Add view model for photo view.