s/\t/    /
[TEST] run REST tests against multiple nodes (round-robin)

Multiple nodes are now started when running REST tests against the `TestCluster` (default randomized settings are now used instead of the hardcoded `1`)

Added also randomized round-robin based on all available nodes, and ability to provide multiple addresses when running tests against an external cluster to have the same behaviour
[TEST] removed leftover delete alias test in delete mapping
[TEST] slightly sped up warmer tests by providing warmers during index creation
[TEST] disabled refresh for get_source realtime test
Add a aggregation test that uses `doc.score` to make sure we don't forget to set the Scorer.
Log warning in case of double release of the IndexSearcher instead of throwing an exception.
[TEST] Added cat.allocation and cat.aliases tests
[TESTS] Fixed cat.allocation tests to work with one node cluster
[TESTS] Make cat.allocation tests handle different disk sizes
[TEST] fixed cat/allocation REST tests
[TESTS] Looks like Java character classes require explicit \s