Log Message:
Update to 0.9.20:

2010-08-22 Rasqal Version 0.9.20 Released

   Updated to handle more of the new syntax defined by the SPARQL 1.1
   Query and SPARQL 1.1 Update W3C working drafts of 1 June 2010
   Added execution support for new SPARQL 1.1 query built-in expressions
   IF, URI, STRLANG, STRDT, BNODE, IN and NOT IN.
   Added an 'html' query result table format from patch by Nicholas J
   Humfrey
   Added API support for group by HAVING expressions
   Added XSD Date comparison support
   Support building with Raptor V2 API if configured with --with-raptor2.
   Many other bug fixes and improvements were made.
   Fixed Issues: #0000352, #0000353, #0000354, #0000360, #0000374,
   #0000377 and #0000378