I built with VS 2012 before submitting this pull request.  On my machine, I did have to override the gyp VS autodetection behavior, I believe this was because I had a partial install of VS 2010 (w/o C++) and a full install of VS 2012 (w/ C++) and the gyp logic prefers 2010 over 2012 when both are found.

I didn't run the full test suite, but a little light usage of the release build for 0.10.3 and 0.11 pre worked fine.