Added 2012 project
Merge branch 'master' of https://github.com/bookman25/vs-code-coverage into add2012ExtensionProj
Added references to vs2012 project.

Fixed a few 2012 errors.
Made vstest reference path dependent on the vs instance being used.
Instead, create a new 2012 solution (keep completely separate from 2013).
Merge branch 'master' of https://github.com/bookman25/vs-code-coverage into add2012ExtensionProj
Updated user control rename.
Merge pull request #1 from bookman25/add2012ExtensionProj

Add 2012 extension proj