Add FactoryGirlRails to Gemfile

Add factories
Set default for reserved quantity
Remove preinitialization of reserved and replace vendor with traveler in factories
Watch other directories in Guardfile
Replace fixtures with factories
Creating a booking with a traveler that has no name should ignore that traveler
Sold Out Schedule test
Create a namespace for admin

Add tests with specific route to allow changing of availability of an
activity.
Add available to schedule with default true
Unavailable schedule should be seen in json response
Add test to show we can get schedules for a single day