0.16.3: zip / tar.gz / issues

Release Notes:

No special upgrade steps are needed from 0.16.2.

Merging complex objects / types (geo, objects) can cause failure to lookup field names (without type prefix) (#1016)
Numeric values always omit norms (boosting), regardless of the configuration set (#1020)
River might not start properly after cluster shutdown (timing) (#1038)
Misbehaving “missing” field in facet results (#1070)
java.lang.ArrayIndexOutOfBoundsException when indexing a doc (#1094)
Uneven distribution of search requests across shards (#1103)
Delete API: Using refresh parameter might not refresh delete operation on replica (#1047)
Parent Child: complex parent child mapping (>2 hierarchy) might fail (#1039)
Query DSL: Span Term Query wrongly parses when boost is provided, causing using it in span or to fail (#1032)
Transport Client: Adding more nodes causes more scheduled reconnect tasks (#1062)