Add IPathUtility to Simple.Web template

Simple.Web requires an IPathUtility to be defined somewhere and, because I
removed the Simple.Web.AspNet package, we needed to define our own. (Or
add the Simple.Web.AspNet package back in, along with the .cs file that
comes with it.)
Bump Simple.Web template version
Merge pull request #60 from jjvdangelo/master

Simple.Web project template fix