Merge pull request #24 from tarunbhardwaj/develop

Handle special case for shipment from US to PR or CA
provision to change default display name of ups service #5852
Disable `carrier cost computation`(default behaviour)

disable `carrier cost computation`(default behaviour) as cost
should only be computed after updating service_type else error may
occur, with improper ups service_type.
Merge pull request #26 from tarunbhardwaj/fix_calculation

Disable `carrier cost computation`(default behaviour)
Merge pull request #25 from tarunbhardwaj/display_name_5852

provision to change default display name of ups service #5852
Provision to have custom name