[#6325] using jinja2.TemplateNotFound for bad paths
[#6325] using jinja2.TemplateNotFound for bad paths

Signed-off-by: Nicholas Bollweg (Nick) <782a49a6a6e4d098fcb78f09742937ae6b0a72ad@gmail.com>

apache/allura,apache/incubator-allura,lym/allura-git,apache/allura,apache/incubator-allura,heiths/allura,apache/incubator-allura,lym/allura-git,heiths/allura,apache/allura,apache/incubator-allura,lym/allura-git,heiths/allura,lym/allura-git,heiths/allura,apache/allura,apache/allura,lym/allura-git,heiths/allura