[Announce] Updates for OS templates

[Kir Kolyshkin]

We have just released updates for all existing OS templates.

Template metadata and precreated templates are updated.
Yum repository caches were also updated.

If you use template metadata (vztmpl-* rpms), please download
and install the latest versions of it (using rpm -Uhv command).
Then, you need to run vzpkgcache to update the template cache.
To actually fix bug #73 (see below), you need to run vzpkgcache -f
(it takes a bit longer to run).

If you use precreated templates, consider updating them to
the latest versions available from download.openvz.org.

Note that you do *not* need to download yum repo cache - this is
just for the new users.

The following bugs were fixed:
------------------------------

* Bug #73, http://bugzilla.openvz.org/73
* crond is absent in templates; anacron is present
* Affects: fedora-core-3, fedora-core-4, centos-4.
Previous OS template releases contained anacron in default set of packages.
Anacron is rarely needed in a VPS, so it was removed.
Previous OS template releases were lacking a cron daemon, so
vixie-cron was added to default set.

* Bug #74, http://bugzilla.openvz.org/74
* dummy should provide kernel-drm
* Affects: fedora-core-3, fedora-core-4, centos-4.
People who tried to install xorg-x11 and vnc-server packages
noticed it leads to kernel rpm installed into a VPS. This
happens because xorg-x11 requires kernel-drm.
Although that makes no harm, kernel is not needed inside
a VPS. So 'provides: kernel-drm' was added into a dummy
package to fix that.

* Bug #77, http://bugzilla.openvz.org/77
* centos URLs changed
* Affects: centos-4.
CentOS 4 yum repository was available from beta.centos.org,
now it is not there, so vzyum and vzpkgcache fails to work.

* Bug #78, http://bugzilla.openvz.org/78
* dummy package is installed, not upgraded
* Affects: fedora-core-3, fedora-core-4, centos-4.
Because dummy provides kernel, yum thinks it
needs to be installed, not upgraded, even if old
version exists, thus resulting in two or more
versions of dummy installed.