Unable to book 8:00am as admin

[wiggydave10]

1) As admin user

2) Click 8:00am slot

See: "You cannot book for 08:00. Please contact the admin" warning/error on booking

Expect: Seeing as I am admin, surely I should be able to book an 8:00am

[Gavin Sharp]

Fixed Issue #31. Added admin overrides for out of hours and sunset times

→ <<cset acb9ee360a63>>

[wiggydave10]

Tested and works.