SOLR-5382: Update protobuf checksum

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535195 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5384: randomlyEnableAutoSoftCommit in ChaosMonkeySafeLeaderTest is buggy.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535204 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5027 CollapsingQParserPlugin

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535208 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5303: clear cache before each test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535215 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5300: Optimized SORTED_SET storage for fields which are single-valued.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535296 13f79535-47bb-0310-9956-ffa450edef68
Fix Lucene45DocValuesProducer version checks now that there are two supported versions.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535299 13f79535-47bb-0310-9956-ffa450edef68
Fix javadoc.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1535318 13f79535-47bb-0310-9956-ffa450edef68