TRUNK-4138 | Removed discontinued and discontinuedBy fields from Order class.
Added custom changeset to add new Discontinue Orders for discontinued orders.
Renamed discontinued_date to date_stopped in orders table.

Applying auto format changes
Follow up to fix changesets with duplicate ids - TRUNK-4137
Follow up to edit the error message when date stopped is null for any discontinued order - TRUNK-4138
Add changeset to drop fk constraint on orders.discontinued_by column before dropping the column - TRUNK-4138
Add service methods for fetching active orders and order history by
order number for a patient - TRUNK-4191
Follow up to fix faulty changeset - TRUNK-4138
Add service methods for fetching active orders and order history by
order number for a patient - TRUNK-4191
Moved @Transactional annotations to the service impl

Moved @Transactional annotations to the service impl
Doing some formatting changes