Updating to latest masters

Deployed new service (6a1b6a17a4d6e2f7d4b8c6bd0d6f033d425fd886):
* Update bug URL for the package.
* Factor out configuration file parsing and logging setup.

Deployed new bundler (f25c1956333a124e4cffec8a3ee52a2f4c5f76a3):
* Add ability to limit the number of simultaneous requests for small wikis
  (bug 71895).

Deployed new latexer (dda888e5f64008c71cc37221f942a404e3a32107):
* Properly clean up while running tests (bug 71341).
* PDF can't handle UTF-8 URLs (bug 71547).

Change-Id: Ic47e2d2a6a2c8172ea0bcb450760993ef9223161
Merge branch 'master' into wmf-deploy

Change-Id: I09207fa2110e5fcf7376b135e98dd44c3d9f5bfe