Fix issue #853

DefaultSslContextFactory would ignore enabledCipherSuites unless you also specified enabledProtocols, due to a copy-paste error.
Fix issues #852 and #862.

- Issue #852: Android NIO server SSL handshake was hanging due to SSLEngine behaving differently on Android than on J2SE
- Issue #862: Android and J2SE SSL server was hanging on close-notify due to SSLEngine going directly from NEED_WRAP to NOT_HANDSHAKING
Merge pull request #863 from jkeljo/fixes

Thanks for the JCA. Applied changes. Fixes for #852, #853, #862