0.9.17

• temporarily register BC provider on X.509 factory (work-around for #94)
• support Cipher#auth_tag and auth_data for GCM ciphers (e.g. aes-128-gcm)
• need to drop support for BC <= 1.50 due EC support (N/A in older BCs)
• (somehow working) draft at implementing PKey::EC (elliptic curve support)
  DH encryption expected to behave correctly
• make sure (initial) BC security provider registration works!
  ... when -Djruby.openssl.provider.register=true (due #94)
• Make ALL cipherstring match ECDHE cihphers (#91)
• fix X.509 indexBySubject returning correct index
• try to handle SSLContext.session= and also try answering session_reused?
• handle equals/hashCode on SSL::Session and raise on timeout int overflow
• Allow DSA private keys to be initialized from parameters. (#83)
• Instantiate both the private and public keys when setting parameters. (#82)