Added a note to the SQLite database documentation mentioning that version 3.6.2

is to be avoided like the plague. Fortunately, it was only the latest release
for three weeks, so avoidance is easy (as is upgrading).

Refs #9358.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9540 bcc190cf-cafb-0310-a4f2-bffc1f526a37