Deprecate contact_groups_uuid and change it to contact_group_uuid.

app_config.php

@@ -393,7 +393,8 @@
 
 		$y = 4; //table array index
 		$apps[$x]['db'][$y]['table'] = "v_contact_groups";
-		$apps[$x]['db'][$y]['fields'][$z]['name'] = "contact_group_uuid";
+		$apps[$x]['db'][$y]['fields'][$z]['name']['text'] = "contact_group_uuid";
+		$apps[$x]['db'][$y]['fields'][$z]['name']['deprecated'] = "contact_groups_uuid";
 		$apps[$x]['db'][$y]['fields'][$z]['type']['pgsql'] = "uuid";
 		$apps[$x]['db'][$y]['fields'][$z]['type']['sqlite'] = "text";
 		$apps[$x]['db'][$y]['fields'][$z]['type']['mysql'] = "char(36)";