Tests: Pass through locale and timezone to test runner, and print in
repro command line.

The carrot runner currently randomizes both locale and timezone, but
these are not set in the maven reproduce line.  Since they aren't
even printed, we have no idea what locale/timezone the tests
actually ran with.
Aggregations: Do not take deleted documents into account in aggregations filters.

Since aggregators are only called on documents that match the query, it never
gets called on deleted documents, so by specifying `null` as live docs, we very
likely remove a BitsFilteredDocIdSet layer.

Close #8540
Aggregations: Fix geohash grid aggregation on multi-valued fields.

This aggregation creates an anonymous fielddata instance that takes geo points
and turns them into a geo hash encoded as a long. A bug was introduced in 1.4
because of a fielddata refactoring: the fielddata instance tries to populate
an array with values without first making sure that it is large enough.

Close #8507
Tests: Fix test bug in Filter[s]Tests that made it throw a version conflict.
[TEST] use logger level from test class annotation also in external nodes

closes #8552