Move action.wait_on_mapping_change setting to pom
Remove XTermsFilter and UidFilter in favour of Lucene 4.1 TermsFilter
Throw a more meaningful message when no document is specified for indexing
Attempt to fix "No active shards" failure
Added more info to assert
Fixes size assertion failure.
don't use substraction for comparison if datatypes can overflow
Added sort by field that have multiple values per document.

Closes #2634
Extended mv sorting integration test
Cleanup NumericFieldData. FieldData interfaces are reduced to long and double while internal
represenations still operate on the actual datatypes.