Fixed #12693 -- Improved error handling when there is an error setting up the database router chain. Thanks to dhageman for the report and fix.
Fixed #12693 -- Improved error handling when there is an error setting up the database router chain. Thanks to dhageman for the report and fix.

git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@12305 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django