LUCENE-4941: Sort the "from" terms only once when using JoinUtil.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1490697 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4906: fix UpdateRequestProcessorChain class javadocs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1490782 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4890: remove /non/existent/dir/yields/warning from example

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1490889 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4933: collapse Exact/SloppySimScorer into SimScorer

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1490971 13f79535-47bb-0310-9956-ffa450edef68
remove obselete TODO

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1490989 13f79535-47bb-0310-9956-ffa450edef68