Start playing at a specific time via url fragments

This uses URL fragments similar to youtube and as described in the video 
examples here:

http://en.wikipedia.org/wiki/Fragment_identifier#Examples
TBH - I don't think this is the best way to do this. I think it's coarse and could lead to problematic sync issues, but FWIW I'm not sure there's a better way to do this in the context of a paella plugin.

One could probably get this to work more logically at the level where the player is instantiated, but I really like the idea that you'd enable functionality via plugins as then you can compose the player functionality that you want in config.