Update dependencies

Merge branch 'delete-subaddress' into 'master'

Delete subaddress, wallet auto-creation and other improvements.

See merge request moneropay/moneropay!17

Merge branch 'callback-loop-improvements' into 'master'

0-conf support and callback loop sleep improvements (new version 2.6.0)

See merge request moneropay/moneropay!16

bump xgo version in Dockerfile

Bump version number, throw a deprecation warning for TxHash

Update readme and bump monero-wallet-rpc version to latest

Expose callback data struct

Merge branch 'new-release' into 'master'

Create model package

See merge request moneropay/moneropay!7

Merge branch 'new-release' into 'master'

New release v2.2.1

See merge request moneropay/moneropay!6

Merge branch 'new-release' into 'master'

MoneroPay v2.2.0

See merge request moneropay/moneropay!5