Change app startup to allow Nancy to send back a large JSON response.
Merge pull request #28 from cturano/master

Change app startup to allow Nancy to send back a large JSON response.
added support for post installation steps
Up the .NET framework to 4.5 to make sure it compiles against Sitecore 7+ binaries. Patch the zip entry data parser to properly include files from under addedfiles into the package manifest