Driving me nuts.
New API

injectIframePlayer() still works, but I want to deprecate it someday in favor of createPlayer().

Signed-off-by: Brandon Aaskov <aaskov@gmail.com>
Refactored iframe creation

Previously, it was way too complicated - the mere fact that I had
cyclical dependencies in iframe.js was evident of that. Now Iframe is a
contstructor that we can create new instances of. This helps us manage
the players better since everything is controlled in player.js, and
everything lives in the _players array. We're also now following the
event flow more precisely so that we don't call bind on the pdk
before/after we should.
Fresh builds for 0.8.1
Updated iframe implementation

Still not working because unboundPlayers is empty, but shouldn't be.
Very confusing.
Update builds from testing.