[DOCS] Clarify that only_expunge_deletes doesn't override expunge_deletes_allowed
[TEST] make sure that the -Dtests.rest.blacklist parameter works on windows too

Some reserved characters need to be replaced in the test section names, which gets parsed as a path although it isn't a filename
[TEST] added wait for relocationg shards to cat.shards REST test

Adding the second index might cause relocation of existing shards depending on the number of nodes available, let's wait for relocation to be finished before going ahead and checking the cat shards outpu
[DOCS] Add imap river and security plugin to docs
[DOCS] Add community supported MSI installer to docs
[DOCS] Fielddata cat API added in 1.2.0
[DOCS] reordered cat apis menu
BigArrays: Disable breaking.

The BigArrays limit is currently shared by the translog, netty, http and some
queries/aggregations. If any of these consumers starts taking a lot of memory,
then other ones might fail to allocate memory, which could have bad
consequences, eg. if ping requests can't be sent. The plan is to come up with
a better solution in 1.3.

Close #6332
[DOCS] removed slowest on single query benchmark requests

Relates to #5904
[DOCS] fixed curl requests in benchmark docs
[DOCS] Improved grammar in multi-match query docs
[DOCS] fixed typo in fucntion-score query docs
[DOCS] Update elasticsearch version in repositories.asciidoc
[DOCS] fix typo in network module docs
[DOCS] Fix minor error in cluster stats example
More Like This Query: values of a multi-value fields are compared at the same level.

Previously, More Like This would create a new mlt query for each value of a
multi-value field. This could result in all the values of the field to be
selected, which defeats the purpose of More Like This. Instead, the correct
behavior is to generate only one mlt query for all the values of the field.
This commit provides the correct behavior for More Like This DSL. The fix for
More Like This API will be coming in another commit.

Closes #6310
[DOCS] Fixed typo in IndexRequestBuilder Javadocs
[DOCS] Update index docs to match changes in IndexResponse class

IndexResponse.id() ->  IndexResponse.getId()
[DOCS] fixed urls in nodes-stats docs
Remove support for field names in node_stats url

Field names ended up making the urls too long, fields are still supported as query string parameters though (same as indices stats)