Revert "Add Fedora 19 to the nodepool (devstack-f19-check)"

This reverts commit 269eb89b84c61b54eaf1890b79ca8a7b54037d43.

Revert "Properly escape Schrodinger's Cat in yaml."

This reverts commit 21a618adb3ebba0cb1e98fae75d0afdd8f9e9244.

Change-Id: I2789ea52bf438bab13062f055092ad49526cd08c