Merge branch 'master' into ccr

* master: (25 commits)
  Disable bwc tests in preparation of backporting #26931
  TemplateUpgradeService should only run on the master (#27294)
  Die with dignity while merging
  Fix profiling naming issues (#27133)
  Correctly encode warning headers
  Fixed references to Multi Index Syntax (#27283)
  Add an active Elasticsearch WordPress plugin link (#27279)
  Setting url parts as required to reflect the code base (#27263)
  keys in aggs percentiles need to be in quotes. (#26905)
  Align routing param type with search.json (#26958)
  Update to support bulk updates by query (#27172)
  Remove duplicated SnapshotStatus (#27276)
  add split index reference in indices.asciidoc
  Add ability to split shards (#26931)
  [Docs] Fix minor paragraph indentation error for multiple Indices params (#25535)
  Upgrade to Jackson 2.8.10 (#27230)
  Fix inconsistencies in the rest api specs for `tasks` (#27163)
  Adjust RestHighLevelClient method modifiers (#27238)
  Remove unused parameters in AnalysisRegistry (#27232)
  Add more information on `_failed_to_convert_` exception (#27034)
  ...

Author: jasontedor

build.gradle

@@ -186,7 +186,7 @@ task verifyVersions {
  * after the backport of the backcompat code is complete.
  */
 allprojects {
-  ext.bwc_tests_enabled = true
+  ext.bwc_tests_enabled = false
 }
 
 task verifyBwcTestsEnabled {

buildSrc/version.properties

@@ -5,8 +5,8 @@ lucene            = 7.1.0
 # optional dependencies
 spatial4j         = 0.6
 jts               = 1.13
-jackson           = 2.8.6
-snakeyaml         = 1.15
+jackson           = 2.8.10
+snakeyaml         = 1.17
 # when updating log4j, please update also docs/java-api/index.asciidoc
 log4j             = 2.9.1
 slf4j             = 1.6.2

client/rest-high-level/src/main/java/org/elasticsearch/client/RestHighLevelClient.java

@@ -0,0 +1 @@
+eb21a035c66ad307e66ec8fce37f5d50fd62d039

client/sniffer/licenses/jackson-core-2.8.10.jar.sha1

@@ -0,0 +1 @@
+eb21a035c66ad307e66ec8fce37f5d50fd62d039

client/sniffer/licenses/jackson-core-2.8.6.jar.sha1

@@ -0,0 +1 @@
+1c58cc9313ddf19f0900cd61ed044874278ce320

core/licenses/jackson-core-2.8.10.jar.sha1

@@ -0,0 +1 @@
+e853081fadaad3e98ed801937acc3d8f77580686