SOLR-5246: Shard splitting now supports collections configured with router.field

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526151 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5235: This is according to Clover never hit, so be more strict, may help Robert

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526155 13f79535-47bb-0310-9956-ffa450edef68
Update Clover License file and Clover version

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526208 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5243: Temporarily fix problem with Clover + Java 7 caused by broken comparator. Once Clover 3.2.0 is out we can remove the snapshot repository. This patch is needed on trunk only (because Java 7)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526210 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4221: make new solrj client/router able to read old clusterstate

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526244 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5233: tweak demo example search string to something that isn't in the code base

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526247 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5085: the point of the subdir is so the files wouldn't have 'rc' in their name, and could be copied as is ... fix script to split X.Y-RCZ to build final file names, and vet that args look correct

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526271 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5085: fix script to use proper pdf file name in sha1 checksum file (should not include directory path)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526272 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5245: Fix MultiTermQuery's constant score rewrites to always return a ConstantScoreQuery to make scoring consistent. Previously it returned an empty unwrapped BooleanQuery, if no terms were available, which has a different query norm

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1526399 13f79535-47bb-0310-9956-ffa450edef68