Ordering and sorting for MR in api.
Different created_at and updated_at time in api merge_requests spec.
Fix typo in comment.
Merge branch 'order_mr_api' into 'master'

API MR ordering

Fixes #1477

See merge request !1076
Check for hooks directory symlink in gitlab:check
Add dormant New Relic gem

The gem can be enabled and configured via environment variables.
Merge branch 'new_relic' into 'master'

Add dormant New Relic gem

See merge request !1089
Don't rebase pushed commits.
Merge branch 'dont-rebase-pushed-commits' into 'master'

Dont rebase pushed commits

/cc @jacobvosmaer

See merge request !1095
Merge branch 'gitlab_check_hooks_symlink' into 'master'

Check for hooks directory symlink in gitlab:check

See merge request !1094