[vote] Missing searchDocumentsNames functionality

com.xpn.xwiki.store.XWikiHibernateStore.searchDocumentsNames supports a selectColumns parameter which is supposed to specify which columns should be selected. This parameter is used when building the select string, but the columns are not included in the returned list, so this parameter just makes a bigger select string and increases the execution time. In order to include the specified columns in the result, I propose this: - if selectedColumns is the empty string, keep the previous behavior (return a list of document names) - if selectedColumns is not empty, then return a list of hashmaps, with the column name as the key, with a special name for the document name (for example docname)