Updating to latest masters

Deployed new service (5fad457ac6536ccf2fb88df02b31215b2d14cb7b):
* Avoid use of redis `hkeys`; fix OOM during gc.
* Don't stop gc'ing if a file disappears.

Deployed new bundler (efbeee40948f80532a3e423e4d1813338c206f5f):
* Add options to limit bundle and image size.

Deployed new texter (b7a64572c93f11d75cb2c029c13b2a78f74ed480):
* Fix line wrapping.

Change-Id: I7363983d44462265973e4b31149a8b30103b0488
Merge branch 'master' into wmf-deploy

Change-Id: I5ef1dd515c161475c6542f234ee4fb2e7e5c8fb5