Implement double tap feature request #73.

[markrickert]

Single tap to go to comments, double tap to go directly to article.

[newsyc]

interesting method. is there a way to do this without overriding the existing selection mechanism, do you think?

[markrickert]

Honestly, the first time I really started looking at the source was the other day. I tried to follow the tap chain through what was going on, and there very well may be another way to do this. I'm just not sure of another way to detect a double tap on a UITableViewCell since the table view delegate method only defines the "tappedcellforrowatindex".

[hueykwik]

Why hasn't this been merged?

[grp]

@hueykwik I'm hoping I can support a gesture that doesn't block single taps. Supporting double-tap means all single taps are delayed, which hurts the normal experience.