Formatting
Augment the Dropbox client to be able to list all the files in a
folder. Use this to build a Redis sync function.
Add a lib for testing ring handlers to my deps.
Return pairs of filename-path from the dropbox contents listing.
Return nil if lookup by id doesn't find anything (instead of an atom
containing nil)
Give create-page another arity body so it can be called just with fields
in order.