Upgrade .taskcluster.yml to v1; add deploy to prod task (#992)
Upgrade .taskcluster.yml to v1; add deploy to prod task (#992)

* Deploy to prod on any tag change =)

* WIP converting taskcluster.yml to v1

* Add support for building backend and agent docker images on release events.

* Add ui publish tasks to new taskcluster.yml

* Move new .taskcluster.yml into place.

* Syntax fixes

* Switch to testbhearsum secrets.

* Don't try to build docker images on push events.

* test

* Revert silly test.

* Add some comments.

* Try to fix bad access of release event.

* Move back to production secrets.

* Don't cd deeper than the first level until checking out, to make sure expected folders exist.

* Revert unwanted change.

* Trigger CI tasks on edited event.

testbhearsum/balrog,testbhearsum/balrog,testbhearsum/balrog,testbhearsum/balrog