New version 0.7.6
Remove the unused systemd requires.

rhpkg complains about this line now, so get rid of it

Related: rhbz#1059447
Check for preupgrade-assistant risks

If redhat-upgrade-tool is being used for a major version upgrade,
require that preupgrade-assistant has been run and has not detected any
medium, high or extreme risks to the upgrade. --force will disable this
check.

(cherry picked from commit 93677e7ef3b076559e6193e298f36f87139a60fc)

Resolves: rhbz#1059447
Don't display package problems covered by preupgrade-assistant

(cherry picked from commit a4a105f4c4e1a9b7d54563789161d375eac9af96)

Related: rhbz#1059447
Merge branch 'old' into old-extrabuilds

0.7.5.1 has been rebuilt as 0.7.6
Merge branch 'old-riskcheck' into old-extrabuilds

Pull in the riskcheck changes for a new build
New unofficial version 0.7.6.1