qemu_kvm: disable tests that meddle with system time
libxtc_dxtn: fix using mesa headers
geany: fix build via a minor update
gtkmm3: fix build by using the version from gnome 3.8
dbus: minor update, reorganize and polish the expression
Merge remote-tracking branch 'nixos/x-updates' into experimental/x-updates

* nixos/x-updates:
  dbus: minor update, reorganize and polish the expression
  gtkmm3: fix build by using the version from gnome 3.8
  geany: fix build via a minor update
  libxtc_dxtn: fix using mesa headers
  qemu_kvm: disable tests that meddle with system time

Conflicts:
	pkgs/lib/misc.nix