Updating bundler to master

Change-Id: Ie4a3d35ef3d079c2061c2dc2f9127747a7bca590
Updating to latest masters

Change-Id: Ia3a85097e755ac26d8c63ddc43a55770094924a5
Update for new dependencies in latexer

Change-Id: I155dda6ba45981bdea9e8136e8160fa5dc94dd03
Merge remote-tracking branch 'origin/master' into wmf-deploy

* origin/master:
  Update for new dependencies in latexer
  Updating to latest masters
  Updating bundler to master

Change-Id: If34e28f6c2a8875e46d8b8b9441805c57349f93f