More user file deletion

Sheesh I thought that this stuff was already gone.
Further NSURL fixes

Added more error checking.
XCode recommended re-factoring

Enclosures and other cool code shortcuts.
Getting rid of last legacy Carbon crap.

Got rid of the Carbon presentation stuff for fullscreen.  This is just
temporary till the transition to modern fullscreen.
Got rid of the info window frame animation

Not sure when I enabled that, animation lag felt terrible.
NSSegmentControl Hack to deal with transparency issue

This is too fragile, but works to improve the nssegmentcontrol
appearance atop the black fullscreen status bar in fullscreen.
Modern Fullscreen Implementation

Only a first pass.  Probably buggy as hell.  Needs to impement various
delegate methods.  Killed the old fullscreen toolbar.
More Fullscreen fixes and non-fullscreen re-size fix.

Cleaning up a lot of the useless drose having to do with the old
fullscreen implementation.
Fixed pinch fullscreen

Got rid of the delta calls.
Fixed fullscreen window scaling
Fullscreen window transition

Goofing around wiith the fullscreen window transition animtion
delegates.