PERFORMANCE: filter_func can optionally take an array of events to ma…

…ke batched filters much faster

Fixes elastic#8428

Fixes elastic#8444

Fixes elastic#8445

Bump doc versions as well

Fixes elastic#8407

pick jvm.options for rspec.bat

Clarify use of the dead letter queue path

Fixes elastic#8243

Fix typo

Fixes elastic#8095

Fixes elastic#8106

Metrics / Bug Fix: Protect against race condition in metrics reportin…

…g with multiple inputs.

Protect initialization of metrics obejcts with  mutex to prevent race condition. See elastic#8011 for additional information.

Fixes elastic#8011

Fixes elastic#8027

Fixes elastic#8047

Revert "always use JARS_SKIP when installing or updating plugins"

This reverts commit 628207e.

Fixes elastic#8070

Bump to 5.5.2 and update lock file (elastic#7932)

There were a lot of plugins which got their major versions bumped to handle
6.0 deprecations and obsolete changes. I've added constraints here to not include
them in 5.5.2

Add additional unit test and more broad checking

Fixes elastic#7871

Fixes elastic#7891

Use new ES output for 5.5.1 (elastic#7729)