Change Elasticsearch defaults that cause pain/fear

Turn off automatic index creation - when elasticsearch automatically
creates indexes it never does it the way we need it to and then we have to
fight with it to delete the indexes that it made while it tries keeps
automatically recreating them.  This isn't nice for us so we turn it off.

Turn off the delete/close method for *all* indexes.  You can still delete
or close a single index, but just not all at the same time.  That isn't
something we want to do accidentally.  We haven't had a problem with this
but folk wisdom says this just isn't worth the risk and I don't disagree.

Finally, turn off requesting a shutdown over the rest interface.  We do it
locally via init scripts any way and it just doesn't seem worth the risk
of it being accidentally or maliciously triggered.

Bug: 56165
Change-Id: Idf2c33028979df0e8731dbf27337b4af99185ef3
Merge "Change Elasticsearch defaults that cause pain/fear" into production