Merge branch 'master' into ccr

* master:
  Fixed byte buffer leak in Netty4 request handler
  Avoid uid creation in ParsedDocument (#27241)
  Rander sum as zero if count is zero for stats aggregation (#26893) (#27193)
  Add additional explanations around discovery.zen.ping_timeout (#27231)
  Remove unused searcher parameter in SearchService#createContext (#27227)
  Upgrade to Lucene 7.1 (#27225)
  Move IndexShard#getWritingBytes() under InternalEngine (#27209)
  Adjust bwc version for exists query tests
  Introducing took time for _msearch

Author: martijnvg

buildSrc/version.properties

@@ -1,6 +1,6 @@
 # When updating elasticsearch, please update 'rest' version in core/src/main/resources/org/elasticsearch/bootstrap/test-framework.policy
 elasticsearch     = 7.0.0-alpha1
-lucene            = 7.1.0-snapshot-f33ed4ba12a
+lucene            = 7.1.0
 
 # optional dependencies
 spatial4j         = 0.6

core/licenses/lucene-analyzers-common-7.1.0-snapshot-f33ed4ba12a.jar.sha1

@@ -0,0 +1 @@
+a508bf6b580471ee568dab7d2acfedfa5aadce70

core/licenses/lucene-analyzers-common-7.1.0.jar.sha1

@@ -0,0 +1 @@
+804a7ce82bba3d085733486bfde4846ecb77ce01

core/licenses/lucene-backward-codecs-7.1.0-snapshot-f33ed4ba12a.jar.sha1

@@ -0,0 +1 @@
+dd291b7ebf4845483895724d2562214dc7f40049

core/licenses/lucene-backward-codecs-7.1.0.jar.sha1

@@ -0,0 +1 @@
+0732d16c16421fca058a2a07ca4081ec7696365b