0.9.13

JRuby-OpenSSL is the first release that aims to be Ruby 2.3 compatible.

• SSLSocket#sysread do not copy bytes from buffer - re-use the backing array
• handle read_nonblock EOF as nil when exception: false (Ruby 2.3 compatibility)
• start exposing VERSION constant(s) directly on Jopenssl module
• better not throw EOF on SSLSocket#sysclose for compatibility with MRI
• setup "dummy" OpenSSL::OPENSSL_LIBRARY_VERSION constant for compatibility
• Ruby 2.3 compatibility - adjust to changes in MRI's openssl .rb parts
• update openssl/ssl.rb based on MRI 2.2's version
• disable backtrace generation for wait non-block errors (use an empty array)
• support SSLSocket#accept_nonblock/connect_nonblock with exception: false
• support exception: false with syswrite_nonblock and sysread_nonblock
• remove 'RSA' from RSA public key headers (#76)