Some smaller fixes for openSUSE 13.1 support

* dnsmasq-utils is also required on openSUSE 13.1 (for dhcp_release)
* make sure that iscsid is actually started. On openSUSE it's not
  started by default.

Change-Id: Ibceb7ce1372ca74010bdc9f44258a5a25182adc6
Add bridge_mappings to extras/80-opendaylight.sh to support vlan isolation.

OpenDaylight integration with Openstack requires some extra configuration
information to be set in the ovsdb via the other_config value. Currently
only the local ip address is set. bridge_mappings needs to be added to support
vlan isolation.

This requires changing the form of the existing ovs-vsctl command to set
the other_config value. The current command does a replace so the last
command to run overwrites any other values. The command is changed to
append values instead.

Change-Id: Ia001ecf27c8f5ace05af014ecce0b13f6d490ac1
Merge "Some smaller fixes for openSUSE 13.1 support"
Merge "Add bridge_mappings to extras/80-opendaylight.sh to support vlan isolation."
Merge branch 'master' of github.com:openstack-dev/devstack