refine readme.

@@ -188,12 +188,6 @@ Supported operating systems and hardware:
 
 
 ## Releases
 ## Releases
 * 2014-10-09, [Release v1.0-beta](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.beta), all bug fixed, 1.0.0, 59316 lines.<br/>
 * 2014-10-09, [Release v1.0-beta](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.beta), all bug fixed, 1.0.0, 59316 lines.<br/>
-* 2014-08-03, [Release v1.0-mainline7](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline7), config utest, all bug fixed. 57432 lines.<br/>
-* 2014-07-13, [Release v1.0-mainline6](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline6), core/kernel/rtmp utest, refine bandwidth(as/js/srslibrtmp library). 50029 lines.<br/>
-* 2014-06-27, [Release v1.0-mainline5](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline5), refine perf 3k+ clients, edge token traverse, [srs monitor](http://ossrs.net:1977), 30days online. 41573 lines.<br/>
-* 2014-05-28, [Release v1.0-mainline4](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline4), support heartbeat, tracable log, fix mem leak and bugs. 39200 lines.<br/>
-* 2014-05-18, [Release v1.0-mainline3](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline3), support mips, fms origin, json(http-api). 37594 lines.<br/>
-* 2014-04-28, [Release v1.0-mainline2](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline2), support [dvr](https://github.com/winlinvip/simple-rtmp-server/wiki/DVR), android, [edge](https://github.com/winlinvip/simple-rtmp-server/wiki/Edge). 35255 lines.<br/>
 * 2014-04-07, [Release v1.0-mainline](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline), support [arm](https://github.com/winlinvip/simple-rtmp-server/wiki/SrsLinuxArm), [init.d](https://github.com/winlinvip/simple-rtmp-server/wiki/LinuxService), http [server](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPServer)/[api](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPApi), [ingest](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleIngest). 30000 lines.<br/>
 * 2014-04-07, [Release v1.0-mainline](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline), support [arm](https://github.com/winlinvip/simple-rtmp-server/wiki/SrsLinuxArm), [init.d](https://github.com/winlinvip/simple-rtmp-server/wiki/LinuxService), http [server](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPServer)/[api](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPApi), [ingest](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleIngest). 30000 lines.<br/>
 * 2013-12-25, [Release v0.9](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.9), support bandwidth test, player/encoder/chat [demos](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleDemo). 20926 lines.<br/>
 * 2013-12-25, [Release v0.9](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.9), support bandwidth test, player/encoder/chat [demos](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleDemo). 20926 lines.<br/>
 * 2013-12-08, [Release v0.8](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.8), support [http hooks callback](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback), update [st_load](https://github.com/winlinvip/st-load). 19186 lines.<br/>
 * 2013-12-08, [Release v0.8](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.8), support [http hooks callback](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback), update [st_load](https://github.com/winlinvip/st-load). 19186 lines.<br/>