vagouzhou.github.io：github.io中的Web应用演示测试

##测试屏幕共享 ##how to get package ==================================================== 1. building it by source code 2. get binary pacakge from https://www.dropbox.com/sh/5e642hv4d3hm1wo/AABtnEOITHH3Y-pocHY6SItOa Note: Please use "about:config" to add "localhost" ,"apprtc.appspot.com", or "vagouzhou.github.io" into "media.getusermedia.screensharing.allowed_domains" ##Test GetUserMedia by github site.