Added task to make sure elasticsearch is started
I recently had a build where elasticsearch hadn't auto started so
I added that check here.
Forum role port test now properly uses host argument
Removed mongodb server from package list as it isn't required for xqueue
Merge remote-tracking branch 'upstream/carsongee/elasticsearch_started' into mitx-additions
Merge remote-tracking branch 'upstream/carsongee/forum_test_fix' into mitx-additions
Merge remote-tracking branch 'upstream/carsongee/remove_mongo_server_from_xqueue' into mitx-additions