dhcpcd: /etc/dhcpcd.conf: enable controlgroup by default.

- Users in the wheel group will be able to control dhcpcd via dhcpcd-ui.
dhcpcd-gtk: update to 0.7.4; split icons into the -icons subpkgs.
New package: dhcpcd-qt-0.7.4.
wpa_supplicant: enable update_config in the default config file.

This should allow dhcpcd-{gtk,qt} to work correctly.
chromium-pepper-flash: xz is needed to decompress the debian package.
attic: update to 0.14.
perl-IO-Socket-SSL: update to 2.008.
udisks2: update to 2.1.4.
harfbuzz: update to 0.9.37.
profile-sync-daemon: update to 5.55
Merge pull request #740 from graysky2/patch-1

profile-sync-daemon: update to 5.55
pcc-libs: update to 1.1.0.
pcc: update to 1.1.0.
pcc-libs: switch to build_style=gnu-configure.
orc: update to 0.4.23.
pcc: fix x86 build.
New package: screenFetch-3.6.5.
New package: ipafont-fonts-otf-003.03
Merge pull request #741 from tonkazoid/master

New package: ipafont-fonts-otf-003.03
ipafont-fonts-otf: fix cross build.