Phone number validation
Merge pull request #353 from ministryofjustice/phone_number_validation

Phone number validation
Changes to error messages
Merge pull request #354 from ministryofjustice/demoted_tenancy_errors

Changes to error messages
Better error message for missing licence issued date
Merge pull request #356 from ministryofjustice/missing_licence_date_error

Better error message for missing licence issued date
Fix for error message

CSS didn't look right, as it was always highlighting pink.
Fix for the broken error message spec