Release Name: 0.5

Notes:
* Fixed JRUBY-3614: Unsupported HMAC algorithm (HMACSHA-256)
* Fixed JRUBY-3570: ActiveMerchant's AuthorizeNet Gateway throws OpenSSL Cert Validation Error, when there should be no error
* Fixed JRUBY-3557 Class cast exception in PKeyRSA.java
* Fixed JRUBY-3468 X.509 certificates: subjectKeyIdentifier corrupted
* Fixed JRUBY-3285 Unsupported HMAC algorithm (HMACSHA1) error when generating digest
* Misc code cleanup



Changes:
* Fixed JRUBY-3614: Unsupported HMAC algorithm (HMACSHA-256)
* Fixed JRUBY-3570: ActiveMerchant's AuthorizeNet Gateway throws OpenSSL Cert Validation Error, when there should be no error
* Fixed JRUBY-3557 Class cast exception in PKeyRSA.java
* Fixed JRUBY-3468 X.509 certificates: subjectKeyIdentifier corrupted
* Fixed JRUBY-3285 Unsupported HMAC algorithm (HMACSHA1) error when generating digest
* Misc code cleanup