YoutubeShell/Remixer: default start and end times to query parameter values

[tenedor]

If a user enters the link http://www.youtube.com/watch?v=u6XAPnuFjJc&t=42 into a remixer, the remixer should recognize the t=42 component and initialize the shell's start time to 42 seconds:

Possible formats:
http://www.youtube.com/watch?v=u6XAPnuFjJc&t=42
http://youtube.googleapis.com/v/u6XAPnuFjJc&start=42

One source suggests that end=42 is a valid way to halt playback at an end time, but I cannot get this to work.

The remixer would simply choose flexible defaults to initially display; given this, it seems unproblematic to deviate from youtube's spec and broadly support:

• t=<n>
• t=<n1>m<n2>s
• start=<n>
• end=<n>

[jbenet]

Yeah, sounds good to me.