SOLR-4472: jdoc updates for DateField and UUIDField refering to TimestampUpdateProcessorFactory and UUIDUpdateProcessorFactory (merge r1448879)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1448882 13f79535-47bb-0310-9956-ffa450edef68