Lock on BUFFER suppresses BUFFER_FULL

[pablo]

If a plugin locks or pauses the player while it's in the BUFFERING state, but before the BUFFER_FULL event, the player won't send out the BUFFER_FULL event.

We should be able to solve this by eliminating the condition that the player must be in the BUFFERING state to send out BUFFER_FULL (since the player could be locked when the BUFFER_FULL occurs). Alternately, if BUFFER_FULL occurs while the media is paused, we could queue it up to fire when play() is called.

[pablo]

Fixed in 1268