Update elasticsearch settings

1.  Turn off some logging that I _think_ is causing some cluster actions
to really slow down.
2.  Make permanent some settings that we've configured via the api to
speed up recovery after a node crashes.
3.  Make elastic1007 not master eligible because it is down.  elatic1008
takes its place.

Change-Id: Id40b0c9bececa8b89ebb9228418957a53ada44c9
Merge "Update elasticsearch settings" into production