[2158] updated the lettuce test suite

- introduced the b10-stats daemon running in the lettuce test suite "Xfrin
  incoming notify handling"
- renamed retransfer_master.conf to retransfer_master.conf.orig because of the
  config change in the lettuce suite

tests/lettuce/configurations/xfrin/.gitignore

@@ -0,0 +1 @@
+/retransfer_master.conf

tests/lettuce/configurations/xfrin/retransfer_master.conf

@@ -38,6 +38,7 @@
             "b10-auth": { "kind": "needed", "special": "auth" },
             "b10-xfrout": { "address": "Xfrout", "kind": "dispensable" },
             "b10-zonemgr": { "address": "Zonemgr", "kind": "dispensable" },
+            "b10-stats": { "address": "Stats", "kind": "dispensable" },
             "b10-cmdctl": { "special": "cmdctl", "kind": "needed" }
         }
     }

tests/lettuce/features/terrain/terrain.py

@@ -57,6 +57,8 @@ copylist = [
      "configurations/ddns/ddns.config"],
     ["configurations/ddns/noddns.config.orig",
      "configurations/ddns/noddns.config"],
+    ["configurations/xfrin/retransfer_master.conf.orig",
+     "configurations/xfrin/retransfer_master.conf"],
     ["data/inmem-xfrin.sqlite3.orig",
      "data/inmem-xfrin.sqlite3"],
     ["data/xfrin-notify.sqlite3.orig",