Spacebar starts and stops player
Spinners on database busy
Monkeying with the build locations trying to get it to embed the frameworks properly
Merge branch 'master' of https://github.com/iluvcapra/JHWaveform.git
Select next and previous tab view items with bracket keys
Two things:

- The previewView utterly fails if its player is changed while it's reading the overview, so we keep it from doing that, which is a hack but it works for the time being.
- NSURL now has a compare:
More quick keys to control the attached player
We now observe the player item instead of trashing the old player.
rows live update better now and keep tab objectCount updated
I can't find a good key combo that doesn't conflict with someone else's.  These are out for now
Nicer feedback in the view for when an asset is not playable.