[Test] SimpleNodesInfoTests.testNodesInfos didn't wait for cluster to form properly
[Test] increase ping timeout to 400ms in MinimumMasterNodesTests.dynamicUpdateMinimumMasterNodes
[TESTS] Fix test bugs for parent/child queries.

If you got a bad seed and tests.nightly=true, these tests would either call
Random#nextInt on `0` or trigger infinite loops.
[TESTS] Fix test bug in PagedBytesReferenceTest.
Type is the 'doc-type', not the word 'type'
Update match-query.asciidoc
Fixed typo in getting-started.asciidoc

Closes #6064
Updated groovy docs to point to the new groovy repo
Improved wording in search-type.asciidoc

Closes #5951
Renamed "tire" to "retire" in community clients

Closes #5673
Fix typo in docs