Undo raise NoTemplate on missing template. Breaks _generic fallback.

Author: rouilj

roundup/cgi/templating.py

@@ -298,7 +298,6 @@ def _find(self, name):
                 return # will raise invalid template
             if os.path.exists(src):
                 return (src, f)
-        raise NoTemplate("Unable to load template: %s"%name)
 
     def check(self, name):
         return bool(self._find(name))