squeeky clutch engagement after a fresh bleeding

[99bluebird]

My clutch fluid looked like dogshat, so I bled the system with almost an entire quart of prestone synthetic dot3. When I closed the bleeder the last time and slowly pulled the pedal up, the last half or so of pedal extension was pure play, no engagement or pressure. So then I pumped it a few times and regained the entire travel extension. Let the bubbles out and made sure the reservoir was topped off. Now when I puch the pedal it is squeeky. Does this mean there is air in the master? Will it gravity bubble itself out or should I rebleed it in a different manner?

[99bluebird]

Also it only squeeks when I push in, not on the return if that makes a difference.