Update manifest.json

1.0.0 adds the ability to add a cluster identifier prefix

manifest.json

@@ -5,7 +5,8 @@
       "branch": "gh-pages",
       "versions": [
         "0.4.0",
-        "0.4.1"
+        "0.4.1",
+        "1.0.0"
       ]
     },
     "kamaji": {