Make mozregression work with the new native fennec by installing/running over adb. Eventually mozrunner should be updated to do this and then we can continue to use mozrunner but for now this works.
Don't crash and burn if a nightly build is not found
Look for fennec native builds
Add support for installing and running fennec via adb
Rename the app parameter from mobile to fennec
Add a warning about profile-clobbering
It might be worth considering using mozdevice here, in particular the droid abstraction. This would allow you to work with devices running the SUTAgent protocol in addition to adb, in addition to being simpler.
I agree with wlach that mozdevice would be better.
I'm going to go ahead and merge and write a follow-up issue. If this helps testing now, that's a plus, and the mozregression code is not exactly wonderful as is
see also https://github.com/mozilla/mozregression/issues/44