Integration tests fail if run outside of business hours

[neilbmclaughlin]

The behaviour of the app changes depending on the time of day, specifically in or out of business hours. The behaviour change is which view is presented for the results page - nearby or nearby + open. During business hours the default view is nearby and outside business hours the default view is nearby + open.The tests fail because the nock's are set up with an assumption of the in business hours default view and therefore what the form of the query to azure search will be to mock.

Two possible solutions are:

• explicitly set the open query parameter to not rely on the default behaviour
• fix time using the override env var DATETIME (see README usage) for the tests which do not set the open parameter.