net-firewall/shorewall*: Drop old version
net-firewall/shorewall*: Bumping to v4.5.21.10-r1

v4.5.21.10-r1 corrects IPv6 ipset capabilities checking on 3.14+ kernels

See http://thread.gmane.org/gmane.comp.security.shorewall/31349 for more
information.
net-firewall/shorewall*: QA fixes from b6356ce049c backported
Merge pull request #2 from Whissi/shorewall-4.5.21.10-r1

net-firewall/shorewall*: Bump to v4.5.21.10-r1