test: Support creation of Fedora 21 test images.
test: Disable gpgcheck in make-rpms.

Signatures seem to be unreliable in Fedora 21 right now.
test: Adjust patterns for SELinux journal messages.
test: Allow more journal messages during restart.
test: check-networking for Fedora 21

Avoid racing against NM after hotplugging by waiting for it to
activate the new interface.
test: check-journal for Fedora 21

Log in as root and tolerate a journal message...
test: check-multi-machine and check-dashboard for buggy Fedora 21
test: Disable check-storage testDosParts

See https://bugzilla.redhat.com/show_bug.cgi?id=1135493
test: Work around freeipa-client bug in Fedora 21