IntroducingactualLiveTimefeature

New option actualLiveTime gives us an actual time in the seek bar.

Along with actualLiveTime there is an option, servertime which can be used to override the local time used with actualLiveTime
servertime is specified right now as a string like "2015/11/26 06:01:03". Since the code uses the Date object in Javascript, wrong timezones and wrong time locally is a problem, but
actually parsing the servertime as localtime makes this go away.

I deleted my first repo so I needed to make a second pull request.
Old one for reference: https://github.com/clappr/clappr/pull/688

该提问来源于开源项目：clappr/clappr