CopyFusionTermQueryToSearchServerQuery doesn't return empty queries any more (after mapping).
Moved solrVersion field to DefaultSolrAdapter, because it is always needed.
DisMaxQueryBuilder supports search word cache (stored in ScriptEnv) to avoid duplicates which disable solr's mm parameter.
Prevented creation of dismax query parser if the adapter is already a dismax query parser.
Added explanation of new deduplication of dismax queries in order to get mm working.