1) added WPToolKit and WPUnitTestFramework packages for unit testing. Can't configure them to work yet, need to find another way for unit testing.
2) added QueryURL generator class
3) added response entity for deserialization
4) added parsing function under ResponseParser to deserialize the response JSON object

5) TODO: modify server side code so that the returned JSON object matches the attribute names
Merge branch 'clustering' of https://github.com/Pinultimate/Pinultimate_Windows_Phone into clustering