1. Create mobilespec app with windows platform
2. Open CordovaApp.sln with Visual Studio
3. Try to build/run solution
Problem here is that appxmanifest files in application directory is not valid, until we run build/run scripts from cordova directory.
One possible solution is to add custom prebuild event that calls cordova/lib/prepare.js to jsproj files, that will update appxmanifests. To avoid running this script twice, we need to add additional parameter from build script to msbuild and run prebuild event only if this parameter is not specified.