Merge pull request #14 from jkoberg/master

Update to VS2012 deps; .net45; new VS interops
Target Aga, RhinoMocks, and NUnit to net45 also
Merge pull request #16 from JogoShugh/45everywhere

Target Aga, RhinoMocks, and NUnit to net45 also
Update V1 SDK API refs and to prep for OAuth2.
Skeleton OAuth2 support. Uses default storage (files from current dir or envars)
default OAuth2 to ON
Stub out connection checking for OAuth2