Converted assembly to full PCL and removed unsupported code
Implemented GenerateSecuredApiKey
Changed way we get assembly version to be PCL compatible
Added and updated comments with proper spelling and grammar
Added and updated comments with proper spelling and grammar.
Added Silverlight to PCL
Revert "Added Silverlight to PCL"

This reverts commit d26d421205c5bd304cb1717225d05d93ac9fab5b.
Added mock library back in
Update packages for proper unit testing
Setting up mock had extra instantiation of HTTP Client
Added needed packages to Test project
Bumped version
Testing Appveyor instead of Travis
Updated readme
Updated NuGet spec for changes
Finalized more comments
Converted tabs to spaces for consistency
Replaced deprecated call with correct call
Updated readme
Updated change log