SSWG Review Feedback

During the feedback thread for reviewing the SSWG-0004 RedisNIO proposal, several action items were identified to make RedisNIO the best it can be for 1.0.0.

• Change RedisCommandHandler from open to public final
• Move & Rename Redis.makeConnection to RedisConnection.connect
• Move & Rename Redis.makeDefaultClientBootstrap to ClientBootstrap.makeRedisTCPClient
• Remove Redis namespace enum
• Add label to RESPValueConvertible.init requirement
• Change RESPTranslator logic to copy the ByteBuffer and move the reader index instead of a mutable position value.
• Clarify language in RESPClient.expire to be consistent with timeouts instead of deadlines
• Rename RedisCommandContext to RedisCommand
  • This should include documentation to warn users of reference semantics from the EventLoopPromise