Update latest version to 4.6.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522513 13f79535-47bb-0310-9956-ffa450edef68
Add backward compatibility tests for Lucene 4.5 indices.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522555 13f79535-47bb-0310-9956-ffa450edef68
Update lucene match version in example solrconfig.xml files.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522569 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4906: PostingsHighlighter: add expert API to render highlights to Object

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522630 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5204: Make Directory easier to wrap.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522665 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5133: allow highlight to Object for AnalyzingInfixSuggester for advanced use cases

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522666 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5148: optimization - lazy create child doc list

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522682 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4816: Don't create "loads" of LBHttpSolrServer's, shutdown LBHttpSolrServer when appropriate, get collection from nonRoutableParams.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522685 13f79535-47bb-0310-9956-ffa450edef68
tests: harden

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522702 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4998: fix a few places to pass IOContext.READONCE instead of IOContext.READ

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522723 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5206: fix javadocs to clarify FuzzyQuery's unexpected behaviour on short terms

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522734 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5206: move CHANGES entry to 4.5

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522736 13f79535-47bb-0310-9956-ffa450edef68
try to workaround javadocs bug causing nightly-smoke to fail

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1522884 13f79535-47bb-0310-9956-ffa450edef68
Merged revision(s) 1523214 from lucene/dev/trunk:
LUCENE-5213: Use <groovy/> instead <script/> ant task

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523215 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4906: make expert Object method protected

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523226 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5209: Allow the license checker to optionally avoid check sum comparisons on SNAPSHOT dependencies.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523359 13f79535-47bb-0310-9956-ffa450edef68
improve license version detection

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523368 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4984: etc/logging.properties in example should be removed


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523392 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5237: add lucene index heap usage to luke request handler

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523443 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5167: Ability to use AnalyzingInfixSuggester in Solr

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1523454 13f79535-47bb-0310-9956-ffa450edef68