[ci skip]

No need to be executable since it is sourced in /etc/init.d/gitlab

[ci skip]

[ci skip]

So as to be consistent with what is set in Omnibus

Don't index unnecessary data into elastic

Fixes https://dev.gitlab.org/gitlab/gitlab-ee/issues/347

See merge request !198

[ES indexer] Stabilze indexer when serialized data is corrupted

https://gitlab.com/gitlab-com/operations/issues/56#note_3824850

See merge request !196

Include elasticsearch service in global context

/cc @vsizov 

See merge request !197

CE upstream

```
unresolved:

 app/services/git_push_service.rb

```

See merge request !193

fixed merge conflict: git_push_service.rb



See merge request !194

[ES] Indexer should not trigger data validation

https://gitlab.com/gitlab-org/gitlab-ee/issues/301

See merge request !192

[ES indexer] Add NOT_INDEXED_ONLY option

https://gitlab.com/gitlab-org/gitlab-ee/issues/300

See merge request !187