#946702 by DamienMcKenna: Added initialization of variable $output
#946706 by DamienMcKenna: Added initialization of variable $result
#907460 by coleman.sean.c: Added default title for search404_page
Updated Hungarian translation.
Added information about reverting 404 handling to this module
Added automatic disabling of auto search when site is throttled
#784494 by joelstein: Added thrifty mode to allow skipping of auto search on 404
#767374 by gnarlytom, aaronbauman: Changed words-to-ignore textfield to textarea
* Added documentation for PCRE Regex.
* Added documentation for auto-detection of keywords from search engine referer.
* Added Support 404 Searching if Apache Solr Search module is enabled
* Fixed some bugs