Merge CDROM storage config blocks

lib/vagrant-libvirt/config.rb

@@ -637,6 +637,9 @@ module VagrantPlugins
           c = disks.dup
           c += other.disks
           result.disks = c
+          c = cdroms.dup
+          c += other.cdroms
+          result.cdroms = c
         end
       end
     end

spec/unit/config_spec.rb

@@ -87,7 +87,7 @@ describe VagrantPlugins::ProviderLibvirt::Config do
 
       context "with cdroms only" do
         context "assigned specific devs" do
-          xit "should merge disks with specific devices" do
+          it "should merge disks with specific devices" do
             one.storage(:file, :device => :cdrom, :dev => "hda")
             two.storage(:file, :device => :cdrom, :dev => "hdb")
             subject.finalize!