2.1.606 release

[liudf0716]

Happy Chinese New Year!

Fix

• 程序断网重连出现CPU占满情况 #19
• 客户端与服务器断开后无法重新连接服务器 #18
• 访问本地服务内存上涨后，停止访问不会释放内存 #8
• 1.11.587版本内存占用会不断增加 #6
• stream已经被释放了导致的段错误 #7

New

1. add docker suppport (build: support build static binary #21)
2. add static library link support([feat]:3rdparty source add #24)

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This discussion was created from the release 2.1.606 release.