Parsoid/Upgrade packages

We're aiming for deterministic package installs and using the tools the package manager,, provides. Please install npm v3.x (not v1.x or 2.x). Upgrading a package (or adding a new one) should go as follows: Now everyone's happy and the patch got merged. Go to the deploy repo and: Note that all the  business here is because   is an optional binary dependency that we want to avoid putting in the deploy repo.