Weddings before current date allowed to be added

[FooNicholas]

See wedding 4

To replicate:

Step 1) new n/randomname d/25121990

Step 2) Add bride and groom using add commands:

add n/Mary Muller p/98765432 e/mary@example.com a/123 Kentridgr St t/bride
add n/John Danny p/89989788 e/john@example.com a/456 UTR Ave t/groom