Add test which invokes the installer in process for easier debugging
Add test which invokes the installer in process for easier debugging

EdZava/Squirrel.Mac,emiscience/Squirrel.Mac,Squirrel/Squirrel.Mac,Squirrel/Squirrel.Mac,emiscience/Squirrel.Mac,Squirrel/Squirrel.Mac,emiscience/Squirrel.Mac,EdZava/Squirrel.Mac,EdZava/Squirrel.Mac