re run the failing tests first
tweak sample tests
keep track of all failed tests
stop overriding the default tests selector
transform the test vars into strings.

If you don't do this then when the namespace that contains the failing
test is refreshed by tools.namespace than the failing tests in that
namespace are not selected to run. By capturing them as strings and then
comparing to after refreshing they will be selected.
tweak failing tests
updating CHANGES.md
bumping project version