1.0 updates

Everything works with Elasticsearch 0.90 and 1.0.  Dropping support for
0.90 will remove some of the weird constructs and might speed some things
up so we'll do that once we've updated WMF's cluster.

This commit also makes some changes to make running the browser tests on
vagrant simpler.  They are bundled together because that is how I tested
1.0 and untangling them is more trouble then it is worth because we want
both of them.

Bug: 61879

Change-Id: I1dc24be8350b3a9d7ec9aa4fc251368c7c4b7da2
Merge "1.0 updates"