Mantle Shippo Integration 1.2.0

While there are some new features, this is primarily a maintenance release along with Moqui Framework 3.0.0 and Mantle UDM/USL 2.2.0.

For a complete list of changes see: v1.1.2...v1.2.0

Mantle Shippo Integration 1.1.2

Maintenance release with Moqui Framework 2.1.3 and Mantle UDM/USL 2.1.2

Mantle Shippo Integration 1.1.1

Maintenance release with Moqui Framework 2.1.2 and Mantle UDM/USL 2.1.1

Mantle Shippo Integration 1.1.0

Maintenance release with Moqui Framework 2.1.1 and Mantle UDM/USL 2.1.0, plus some new functionality including better contact info and error handling, and a HTTP endpoint for callbacks from Shippo webhook for label tracking updates.

Mantle Shippo Integration 1.0.0

Initial release of Shippo (goshippo.com) integration for Mantle, based on Moqui Framework 2.1.0 and mantle-udm/usl 2.0.0.