Where did the device tree overlays move to? They used to be in /lib/firmware and I remember discussion of them being consolidated into one file, but I can’t find that discussion (my google fu is weak today).
I used to echo Cape names to the capemgr to enable the overlay, but I can’t remember the name of the (virtual) cape and I can’t find the list 
Thanks,
Josh
BBB Version info for reference:
uname -a
Linux arm 3.8.13-bone60 #1 SMP Mon Jul 7 16:45:52 UTC 2014 armv7l GNU/Linux
cat /proc/version
Linux version 3.8.13-bone60 (root@imx6q-wandboard-2gb-0) (gcc version 4.9.0 (Debian 4.9.0-7) ) #1 SMP Mon Jul 7 16:45:52 UTC 2014
lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux testing (jessie)
Release: testing
Codename: jessie