#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

#v4.4.2002.0-rc - Optional proxy addition (bitpay#59)

* - Optional proxy addition
- Sub-version upgrade

* - Guide updated

* - JavaDoc updated

#v4.3.2001.0-rc - Plain text pkey allowed & XRP added for reporting (b…

…itpay#58)

#v4.2.1912.0-rc - Model updates and ERC_20 codes (bitpay#56)

#v4.1.1911.0-rc - pom update (bitpay#54)

#v4.0.1911.0-rc - Invoice model updated (bitpay#53)

#v4.0.1910 - Improvements and new features (bitpay#52)

- Refunds refactored
- Model dynamics improved
- Invoice filtering extended
- ETH full support

#v3.2.1910.0-rc - Exception handling refactored (bitpay#51)