WIP: Phase 2 of switching to the new Parsoid deploy system

Follow-up to Iad299f0e43f309409a98d3f32d1ac9a3851228c3.

- forcfully kill nodejs

- remove custom deploy script that is no longer needed

- switch to upstart by default and remove references to init file and old repo

Change-Id: I2b3cc40ef2ede8d0212d4039d240c214e4a30866
Merge "WIP: Phase 2 of switching to the new Parsoid deploy system" into production