Updating to latest masters

Deployed new service (379cea3f9b3678bb83963296fdb55e5b3e8887fa):
* Allow prevention of retries of failed jobs.
* Update dependencies.
* Add `/_version` API endpoint.
* Switch from winston to bunyan for logging.

Deployed new bundler (c9bf3d430721dfd2553a49dbe31790113916e006):
* Don't create pipes for `P.spawn` (avoid blocking unexpectedly).
* Update dependencies.

Deployed new latexer (aad4dfbab9e6d6c8d05ec82679843541dfd504ca):
* Prevent 100% CPU hang on certain input text.
* Don't create pipes for `P.spawn` (avoid blocking unexpectedly).
* Update dependencies.

Deployed new texter (8712aeb6e6490b558a22e964ec1bdf995cfd9ca0):
* Don't create pipes for `P.spawn` (avoid blocking unexpectedly).
* Update dependencies.

Change-Id: I4d640ec989a817b6df9d2ca4bf7bdb467db89e0c
Merge branch 'master' into wmf-deploy

Change-Id: I73b316adbb273345292b8b2e0b098fa6e319e336