7.0 1012 2018
1. Cluster function support.
2. Add iotsdk for device manager.
3. Change cloud keepalive from json to binrary.
4. Change server thread num cache from 50 to 200.
5. add api to get ws user count.
6. add api to get webrtc user count.
7. Pre record support, default is disable, and default length is 15s.
6.3 0831 2018
1.Fix windows released package don't have openssl gencertificate tool.
2.Fix Dahua STREAM-ASSIST-FRAME RTP payload format unknown or not supported crash issue
(https://lsc.linkingvision.com/t/h5s-r6-2-h5ss-exe/234/9)
3.Disable 10090 debug port.
4.Fix resolution change ws video sawtooth issue.
5.Fix only one device can't show in the h5console live device tree.
6.Disable HLS by default.
7.Fix cloud src can be restful api delete issue.
8.Fix linux systemd can't auto restart issue.
