Fix exception catching problem in urlopener. fix #1885

git-svn-id: http://svn.flexget.com/trunk@3235 3942dd89-8c5d-46d7-aeed-044bccf3e60c
Fix our jinja pad filter. fix #1883

git-svn-id: http://svn.flexget.com/trunk@3236 3942dd89-8c5d-46d7-aeed-044bccf3e60c