sbcl: compile with core-compression unless disabled

Core compression support allows SBCL to save compressed cores, which
reduce on-disk footprint of compressed cores. Adds a dependency on zlib,
but OS X-provided zlib works just fine.

For details: http://xach.livejournal.com/295584.html
sbcl: update 1.1.16 bottle.

Closes #27177.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
HoRNDIS rel5

HoRNDIS (pronounce: "horrendous") is a driver for Mac OS X, that allows you
to use your Android phone's native USB tethering mode to get Internet access.

Closes #26159.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
pyside: install sphinx at build-time to build docs

Also provide an option to skip building docs, though it doesn't
seem to save much time overall and may be removed.

Closes #27228.