SOLR-6228: Make sure that versions are checked after index and config replication is complete

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608601 13f79535-47bb-0310-9956-ffa450edef68
Added a null check

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608615 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5790: Fix compareTo in MutableValueDouble and MutableValueBool, this caused incorrect results when grouping on fields with missing values

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608639 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6180: Callers of ManagedIndexSchema mutators should hold the schemaUpdateLock.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608646 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6229: Make SuggestComponent return 400 instead of 500 for bad dictionary selected in request

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608680 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5714, LUCENE-5779: Enhance BBoxStrategy & Overlap similarity. Configurable docValues / index usage.
Add new ShapeAreaValueSource.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608793 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5771: SpatialOperation refactoring: (OGC alias names, removed area requirement, fixed overlap definition)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1608922 13f79535-47bb-0310-9956-ffa450edef68