Merge pull request #18 from fujiy/master

Some fixed
Merge pull request #20 from burkeholland/re-design

Converted to Portable Class Library
Removed RestSharp in favor of HttpClient
All calls are async
Separate project for Tests
Support for .NET 4, .NET 4.5, Silverlight 5, WP8, Windows Store 8
Merge pull request #22 from fujiy/master

NuGet
Merge pull request #24 from fujiy/master

Rename and Image Fix
Merge pull request #3 from burkeholland/master

Some fixes