v1.1.1

Patch release upgrading Polaris' Stellar SDK to 2.8, which includes support for Protocol 14. Note the SDK has a single breaking change:

• The type of stellar_sdk.signer.Signer.signer_key is changed from Xdr.types.SignerKey to stellar_sdk.signer_key.SignerKey.

This breaking change did not affect Polaris' use of the SDK, but it may affect your SDK usage.