Adding SEARCH_SEMEME_CONTENT_FILTER and UUID_COLUMN to Search class;
adding support for SearchType.SEMEME in SearchConceptHelper; changing
getSearchType to getComponentSearchType and adding true getSearchType
method to SearchTypeFilter and derived classes; adding reporting and
display of exceptions to EnhancedSavedSearch; adding save and load of
searches to SememeSearchTypeModel and SememeSearchTypeView