bug 829596 - Remove 'Tablet' from UA string of Firefox on Android tablets. back out changeset 196ed5ab68a1, r=mfinkle
Merge the last PGO-green inbound changeset to m-c.
Merge m-c to inbound.
Bug 837631 - Refresh virtualenv.py to pick up the changes from 661f7866da20. r=gps