In order to prevent shipping of RCs with the wrong license, this
smoke tester downloads the internal RC, installs x-pack and puts
a license in there.
if putting is successful, we can be sure, we got the right license.
Closeselastic/elasticsearch#2087
Original commit: elastic/x-pack-elasticsearch@021d228e29
- Consolidated the `bin` and `config` directories of watcher, shield and marvel under a single `config/xpack` and `bin/xpack` directories.
- updated docs accordingly
Original commit: elastic/x-pack-elasticsearch@c2aa6132fa