Fixes user_can_checkout test.
Makes a bit of progess on the user_can_filter_listings_by_bathroom_spec - it now clicks the 'private' method.
Adds 'from' and 'to' arrays to date picker
Minor refactor on available_to_dates method
Merge pull request #152 from MarcGarreau/relevant-avail-dates

Relevant avail dates
Hail mary-ish.
Merge pull request #150 from MarcGarreau/add-availability-to-seed-data

Adds additional users and items to seed data, adds start of availabiliti...
Fixes broken host spec.
Merge pull request #156 from MarcGarreau/fix-user-can-checkout-spec

Doesn't fix user_can_checkout_spec but does fix host_can_confirm_deny_spec.
Notifies traveler of confirmation or denial about a specific booking request.
Merge pull request #157 from MarcGarreau/notify-traveler-of-booking-request-update

Notifies traveler of confirmation or denial about a specific booking req...
Fix merge conflicts