software/dream: listen on another port 18080

use another port so that we can run tests on test node, port 8080 is
already used by testnode.

software/dream/buildout.hash.cfg

 [instance]
 filename = instance.cfg
-md5sum = d2b0e50708b9b92aff44bdbef2fb52b9
+md5sum = 94e1cd21bbdf7cabb5834223859407e0
\ No newline at end of file

software/dream/instance.cfg

@@ -23,7 +23,7 @@ key = $${slap-connection:key-file}
 cert = $${slap-connection:cert-file}
 
 [dream_platform_parameter]
-port = 8080
+port = 18080
 host = $${instance-parameter:ipv6-random}
 url = http://[$${:host}]:$${:port}