Updating sln to VS2012 (backwards compatible).
Fixed reference to missing readme.txt.
Switch dependencies to use NuGet.

Enabled NuGet package restore to avoid checking in dependencies (i.e. Castle).
Merge pull request #12 from mattgwagner/Solution_Updates

Solution and Library Updates
Provide a simplified interface for interacting with the client.

Perhaps a first step towards refactoring.
Anal retentive change to property private setter.
Remove unnecessary build configurations.

All that should be needed is "Any CPU" for this project.