WIP: Phase 1 of moving to new parsoid repo / upstart

* Add new deploy repo

* Point prod upstart to it so that we can test it manually

As discussed in https://gerrit.wikimedia.org/r/#/c/106471,
the next steps will be

1) test the upstart / new repo setup on one of the boxes

2) once that works, switch to upstart by default and remove the old repo and
   init scripts

Change-Id: Iad299f0e43f309409a98d3f32d1ac9a3851228c3