[1.0.X]: Removed an inadvertent raise statement added in [8777] and added the...

[1.0.X]: Removed an inadvertent raise statement added in [8777] and added the printing of tracebacks for template tests that raise an unhandled exception.

Backport of r10183 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10185 bcc190cf-cafb-0310-a4f2-bffc1f526a37