Added a note that MySQLdb versions prior to 1.2.1p2 will only work with mysql_old backend. Refs #3786.
Added a note that MySQLdb versions prior to 1.2.1p2 will only work with
mysql_old backend. Refs #3786.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@5044 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django