Limit phone numbers length #5600

Endicia limit FromPhone length to 10 chars and ToPhone for International
shipment it is limit to 30 and 10 otherwise.
Merge pull request #23 from tarunbhardwaj/task-5600

Limit phone number to 10 chars only #5600
Implemented shipment bag #5602

* Implemented shipment bag to create scanForms.
* Added new access group 'Warehouse Manager'

Review ID: 6873001
Merge pull request #24 from tarunbhardwaj/scan_form_5602

Implemented shipment bag #5602
Carrier fields should be readonly in done state #5597

Carrier and related fields should be readonly in done state of
stock.shipment.out.
Merge pull request #25 from tarunbhardwaj/change-carrier-5597

Carrier fields should be readonly in done state #5597
Fixed calling super get_sale_price()