Adds more OpenStack options in sample config

etc/coriolis/coriolis.conf

@@ -27,3 +27,5 @@ disk_format = qcow2
 hypervisor_type = QEMU
 migr_image_name_map = linux: Ubuntu 15.10, windows: Nano
 migr_network_name = private
+fip_pool_name = public
+migr_flavor_name = m1.small