LUCENE-5341: automate default codec package extraction for use in the generated Lucene documentation's link to the index file format documentation (merged branch_4x r1542013)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542018 13f79535-47bb-0310-9956-ffa450edef68
- Move 'upgrading from previous version' section above the 'detailed change list' super-section
- Put parens around 'Elran Dvir via Erick Erickson' so that it gets recognized as an attribution
(merged branch_4x r1542021)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542022 13f79535-47bb-0310-9956-ffa450edef68
Allow trailing colons in CHANGES.txt section names (merged branch_4x r1542029)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542030 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5283: allow top-level testcase filters.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542201 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5342: Fixed bulk-merge issue in CompressingStoredFieldsFormat


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542310 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5453: Raise recovery socket read timeouts.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542886 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5397: Replication can fail silently in some cases.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542890 13f79535-47bb-0310-9956-ffa450edef68
Added missing Lucene 4.5.1 secion and ported already released changes to that secion.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1542974 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5464: Add option to ConcurrentSolrServer to stream pure delete requests.
SOLR-5465: SolrCmdDistributor retry logic has a concurrency race bug.
SOLR-5452: Do not attempt to proxy internal update requests.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1543301 13f79535-47bb-0310-9956-ffa450edef68