Add RedisQueueOutboundGateway and RedisQueueInboundGateway
JIRA: https://jira.spring.io/browse/INT-3341
add test
fix format issue
change expectmessage to extractpayload, fix test potential bug
fix copyright year
fix format and naming issue
fix as Artem's comments
fix as Artem's comments
change boolean condition judgement
INT-3341: Polishing
Minor Doc Polishing