Bug 1230610 - Switch to using make_request() in ElasticsearchDocRequest
Bug 1230610 - Switch to using make_request() in ElasticsearchDocRequest

I've not added a `post_json()` to treeherder.etl.common since the return
value isn't used here (and I have no idea if the response is valid json)
and this code will be removed once we have autoclassification and stop
mirroring to ElasticSearch.

KWierso/treeherder,glenn124f/treeherder,tojon/treeherder,edmorley/treeherder,tojon/treeherder,glenn124f/treeherder,kapy2010/treeherder,avih/treeherder,tojonmz/treeherder,avih/treeherder,akhileshpillai/treeherder,glenn124f/treeherder,akhileshpillai/treeherder,akhileshpillai/treeherder,edmorley/treeherder,wlach/treeherder,tojonmz/treeherder,akhileshpillai/treeherder,avih/treeherder,tojonmz/treeherder,wlach/treeherder,KWierso/treeherder,kapy2010/treeherder,KWierso/treeherder,tojonmz/treeherder,wlach/treeherder,glenn124f/treeherder,glenn124f/treeherder,wlach/treeherder,akhileshpillai/treeherder,avih/treeherder,avih/treeherder,KWierso/treeherder,edmorley/treeherder,kapy2010/treeherder,akhileshpillai/treeherder,tojon/treeherder,glenn124f/treeherder,edmorley/treeherder,tojonmz/treeherder,kapy2010/treeherder,tojon/treeherder,tojonmz/treeherder,avih/treeherder,wlach/treeherder,wlach/treeherder,kapy2010/treeherder