Changed last_executed_query to avoid raising exceptions on non-utf8-encoded parameter data. 
Changed last_executed_query to avoid raising exceptions on non-utf8-encoded parameter data. 


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@12737 bcc190cf-cafb-0310-a4f2-bffc1f526a37

t11e/django,t11e/django,t11e/django