* WIP migrate tests
* WIP fixing more tests
* WIP fix test build break
* Test results files are now trx
* Get CI to pass until we get an xunit xml logger
* Added DotNetTestPJ since that was needed for one test
* Fix build break
* Forgot to add DotNetTestPJ as a build task
* Need to restore project.json for the project used in ubuntu test
* Restore PJ for ubuntu test
* Switch the Ubuntu test to csproj based
we used to use different code when --framework was specified than when it was not specified, this synchronizes them to use the same code path which removes a hidden NullRef
also adds tests to cover both cases
