[merge from 2.4 branch] use solr schema upgrader for 2.4.2 release -- need to replace the solr schema to include geohash fields
remove AnnotatorService completely - was moved to cn-index-processor
let metacat-index lookup annotations for indexing rather than the metacat "reindex" action.
Add delete log for data objects on CNs.
only index non-empty comment text
index both tags and text from annotateit.org
query by consumerKey until the pid search facets are fully supported on annotateit.org
During the replication, the remote content will be saved without alteration.
allow per-document reindexing to be initiated by any user (to support third-party annotations)
Write the input stream into the file system without alteration in dataone create and update methods.
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