Hmm, ok that wasn't clear to me.
OK, I was able to run the install. But the app doesn't show up on the Relay screen.
Andres-iMac:Downloads andre$ adb install -r STWinkRelay_0-3-0a.apk
Performing Push Install
STWinkRelay_0-3-0a.apk: 1 file pushed. 0.4 MB/s (1211447 bytes in 2.735s)
pkg: /data/local/tmp/STWinkRelay_0-3-0a.apk
Killed
Andres-iMac:Downloads andre
I'm not sure if "Killed" means it needed to kill the installation or if the installation was successful. But the app is not on the screen.