go.talks/present: Fix swiping on Android so it works past the third slide. Used the suggestion found here: http://stackoverflow.com/a/11613327
go.talks/present: Fix swiping on Android so it works past the third slide.
Used the suggestion found here: http://stackoverflow.com/a/11613327

Fixes golang/go#5004.

R=adg
CC=golang-dev
https://golang.org/cl/7631043

Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks