Fixed #2127 -- Made datetime filters fail silently when passed empty strings or None. Thanks, Gary Wilson.
Fixed #2127 -- Made datetime filters fail silently when passed empty strings or
None. Thanks, Gary Wilson.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@3117 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django