Added test for UPSService readonly record.
Changed docstring and removed unittest.skip.
Add settings as secure env variables
Merge pull request #30 from sharoonthomas/origin-dev

Add settings as secure Environment Vars
Merge pull request #29 from VaticanCameos/ups-test

Test for readonly nature of UPSService records.
Integration with trytond_shipping #5974
Merge pull request #28 from priyankarani/develop

Integration with trytond_shipping
Explicitly specify uom for weight calculation