bump(sys-apps/systemd): Upgrade to systemd v204

This version requires some dependency updates as well:
    dev-util/intltool-0.50.2
    sys-apps/baselayout-2.2
    sys-apps/hwids-20130329
    virtual/udev-197-r3

BIG FAT WARNING: v204 provides udev itself. Packages depending directly
on sys-apps/udev instead of virtual/udev are going have a bad time.
hack(sys-apps/systemd): Restore python2_6 compat flag

The ebuild previously had a local change to allow it to be built with
python 2.6 that I missed. Restore for now but we should consider
upgrading since gentoo has moved to 2.7.
bump(sys-devel/make): New make version required by systemd

Recent versions of udev include an explicit dependency on
>=sys-devel/make-3.82-r4 to fix a parallel compile error. The fix never
made it into the systemd ebuilds but is also required there.
bump(sys-fs/udev): Sync up with latest udev packages in portage.

Although we aren't using these newer versions other things in the tree
refer to them so this avoids confusing but otherwise harmless warnings
about udev-9999.
Merge pull request #2 from marineam/upgrade-systemd

Upgrade systemd