Add failing acceptance test for single point of entry checkbox
Add single_point_of_entry column to remits table
Add per-area-of-law single point of entry getters/setters to courts
Add single point of entry checkbox to admin interface

This makes the acceptance test pass.
Include single point of entry in exported JSON
SPOE only added to JSON if present
Merge pull request #222 from ministryofjustice/single-point-of-entry

Add single point of entry support