Removed placeholder video link in bootstrap
Removed placeholder video link in bootstrap

Hardcoded livestream urls for keynotes.

Change-Id: I8737898df7e1d20715b8ca9a6e9001e366cb41f1

WeRockStar/iosched,jarekankowski/iosched,jarekankowski/iosched,WeRockStar/iosched,WeRockStar/iosched,jarekankowski/iosched