RegisterChild -> ChildRegister for consistency
Move getting child information from a request to the model

This is code that I'll use in a few places, in all
likelihood.
Import forms rather than ModelForm

This saves importing everything I need from forms.
Add the ability to unregister a child
Add links from sample album titles
Support creating albums

You still can't actually add any photos yet...
Add a very basic album details page
Make it possible to delete albums