[OE-3048] fixed erod calculation
[OE-3075] fix for admission letters printing an extra blank page before the admission form.
[OE-2928] fixed procedure selection filter
[OE-3078] ward assignment schema fix
[OE-3087] added verification for save() calls
Fixed booking cancellation showing wrong user (resolves OE-3095)
Merge branch 'master' into develop

Conflicts:
	models/Element_OphTrOperationbooking_Operation.php
	models/OphTrOperationbooking_Operation_Theatre.php
	views/default/view_Element_OphTrOperationbooking_Operation.php