Update order editor:  - the order is now editable only if the processingStatus is "edition"  - add buttons to switch between "edition" and "processing" statuses  - homogenize line adding  - don't use a document list for lines (they are not documents) but use the same markup  - show discounts and fees in total  - some other fixes and visual enhancements
Update order editor:
 - the order is now editable only if the processingStatus is "edition"
 - add buttons to switch between "edition" and "processing" statuses
 - homogenize line adding
 - don't use a document list for lines (they are not documents) but use the same markup
 - show discounts and fees in total
 - some other fixes and visual enhancements

jamiepg1/module-price,jamiepg1/module-price