SOLR-5586: All ZkCmdExecutor's should be initialized with the zk client timeout

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554101 13f79535-47bb-0310-9956-ffa450edef68
tests: some nightly tests need solr.hdfs.home - just always set it

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554107 13f79535-47bb-0310-9956-ffa450edef68
when sending a non retry update fails, log it at warn level

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554109 13f79535-47bb-0310-9956-ffa450edef68
tests: raise timeouts for nightly runs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554112 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5587: ElectionContext implementations should use ZkCmdExecutor#ensureExists to ensure their election paths are properly created.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554113 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4709: Move CHANGES to 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554119 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5503: Move CHANGES entry to 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554123 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5588: PeerSync doesn't count all connect failures as success.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554129 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5580: Remove more code that is not legal for determining if a core is new or not.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1554138 13f79535-47bb-0310-9956-ffa450edef68