The additional setting to specify the configuration path is no longer needed with elasticsearch 2.0, so
we should remove it from the documentation. Also cleans up the installation commands to be in line
with what 2.0 requires.
Original commit: elastic/x-pack-elasticsearch@b269568a67
This commit changes the groupId to the above mentioned one
so that S3 uploads will end up in the right bucket. This will
allow the Elasticsearch plugin manager to install the commercial
plugins like
```
bin/plugin install {watcher,shield,license,marvel}
```
like the official ones.
Original commit: elastic/x-pack-elasticsearch@642f1f006a
debadair
jaymode
uboness
Alexander Reelsen