New ProfileUrl class

New class for manage profile url request string (basic and full) in the
order provided by LinkedIn. Unit tests are also included.
New ProfileUrl class for VS2008 and WP

New ProfileUrl class for Visual Studio 2008 (.NET Framework 2.0 and 3.5)
and Windows Phone (7.0 and 7.1). Also include corresponding tests.
Merge pull request #7 from rsotolongo/master

New ProfileUrl class