Portable Library  - WIP

Switched to Json.NET Portable Library DLL...    (4.5.11)
Work's like a charm...
Added WP7 / WP8 Sample apps

WIP on the .NET Portable Library for Apigee.
Started working on wp7 implementation.
.Net 4.5 implementation is working.

Explaination: The Protable Library has an Inteface - "IHttpTools".
Each platform needs to implement it differently, since the Web actions
(request, respons) are not the same.