#v6.3.2109.0-rc - Refunds update (bitpay#76)

* - createRefund updated

* - Apidoc updated

Co-authored-by: Antonio Buedo <[email protected]>

#v6.2.2109.0-rc - Invoice model update (bitpay#75)

* - Invoice model updated
* - JavaDoc updated
* - Version upgrade

#v6.1.2109.0-rc - Invoice model update (bitpay#74)

* - Invoice model updated
* - Apidocs updated

#v6.0.2109.0-rc - Project V (bitpay#72)

#v5.3.2107.0-rc - Minor updates (bitpay#70)

- Code refactor
- Version upgrade
- JavaDoc update

- Code refactor (bitpay#68)

#v5.1.2011.0-rc - Payouts update (bitpay#66)

* - Payouts updated
* - Payouts recipient models added
* - Code refactor
* - Tests refactor
* - JavaDoc update
* - Version upgrade

#v4.7.2004.0-rc - Bugfix invoice: amountPaid & refundInfo serialisati…

…on (bitpay#63)

#v4.6.2003.0-rc - Bugfix invoice refund addresses serialization (bitp…

…ay#62)

- Bugfix: invoice::refundAddresses serialization
- Subversion upgrade
- BitPayLogger disabled by default
- New method for setting logger level
- JavaDoc updated
- Tests updated

#v4.5.2002.0-rc - Mayor updates (bitpay#60)

- http Headers refactor
- api frame headers added
- invoice properties deprecation
- JavaDoc updated