Fixed #2119 -- fixed problems with splitting SQL statements into separate

statements. Uses a patch from eaw@woudy.org and some contributions from
jpellerin@gmail.com. Also fixes #2034 and #1935.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@3178 bcc190cf-cafb-0310-a4f2-bffc1f526a37