Bug fixes: #718834: white page when used with luceneapi 6.x.2.1 #660938: Undefined constant BLOCK_NOT_CACHABLE
Bug fixes: #621570: Improve internationalization
NOTE: This release corresponds with the beta2 release of Search Lucene API.
Usability: #610148: Update code to reflect the IA change in beta2 of Search Lucene API
Adds DidYouMean spelling suggestions based on the content of the site.