Unified default ack timeout to 30 seconds

Increased also default publish state timeout to 30 seconds (from 5 seconds) and introduced constant for it.
Introduced AcknowledgedRequest.DEFAULT_ACK_TIMEOUT constant.
Removed misleading default values coming from the REST layer.
Removed (in a bw compatible manner) the timeout support in put/delete index template as the timeout parameter was ignored.

Closes #4395
More common AcknowledgedRestResponseActionListener

Introduced use of AcknowledgedRestResponseActionListener in put/delete alias & delete index
Introduced ok & acknowledged constant in AcknowledgedRestResponseActionListener
Made sure that we never throw IndexMissingException in indices query and filter

It could happen although we internally use IgnoreIndices.MISSING, due to MetaData#concreteIndices contract, which throws IndexMissingException anyway if all requested indices are missing.
In case all the indices specified in the query/filter are missing, we just execute the no_match query/filter, no need to throw any error.

Closes #3428