Terms/Ids filter: Support empty list of values, resulting in no match for it
closes #2687
also closes #2686
Empty list in ids query should not fail, but match no docs
relates to #2687
better error message on nested sorting
add helper method to know if ObjectMappers have a nested mapping
Removed unused nested children collector.
Fixed resolving closest nested object when sorting on a field inside nested object
release 0.90.0.Beta1
move to 0.90.0.Beta2 snap
Changing dynamic index and cluster settings should work on master-only nodes

Fixes #2675
Moved resolveClosestNestedObjectMapper to MapperService
Allow index: "no" for _type
fixes #2696
Allow _count to take preference parameter. [#2698]
Updated postings format jdocs
Include preference in _count serialization and builder. [#2698]
remove compress flag, as its no longer relevant
upgrade to guava 14.0
malformed elasticsearch.yml causes unresponsive hang
fixes #2693
Fix AIOOB exception in UID type/id tuple creation.

Closes #2695
move id tests into SimpleQueryTests
don't log merge failures twice