Revision 3165

buildsystem: add /etc/youri/host.conf

The host.conf config file for youri contains the hostnames of the nodes
that are building packages for each architecture. The variable
$build_src_node has been added to buildsystem::var::scheduler to contain
the hostname of the server building the initial src.rpm. The variable
$build_nodes_aliases has been added to buildsystem::var::scheduler to be
used to find the real hostnames of the nodes building the packages for
each architecture.