LUCENE-5969: remove 4.x back compat

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1633998 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-6021: Make SparseFixedBitSet and FixedBitSet share a common "BitSet" interface.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634012 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5911: Update trunk CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634036 13f79535-47bb-0310-9956-ffa450edef68
added an asMap() method

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634047 13f79535-47bb-0310-9956-ffa450edef68
Revert backport

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634051 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6651: Fix wrong timeout logged in waitForReplicasToComeUp

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634057 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6651: Don't log found twice

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634060 13f79535-47bb-0310-9956-ffa450edef68
silence unused compiler warning

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634065 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6650: Add optional slow request logging at WARN level; this closes #101

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634086 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6591: Overseer can use stale cluster state and lose updates for collections with stateFormat > 1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1634243 13f79535-47bb-0310-9956-ffa450edef68