Update to new manifest format

wordpress.app

@@ -1,13 +1,6 @@
 {
-  "name": "Wordpress",
-  "version": "0.3",
-  "docker_image": "girish/wordpress:0.3",
-  "home_url": "/",
-  "health_check_url": "/",
-  "http_port": 80,
-  "suggested_locations": [
-    "blog",
-    "wordpress",
-    "wp"
-  ]
+  "version": "0.4",
+  "dockerImage": "girish/wordpress:0.3",
+  "healthCheckPath": "/",
+  "httpPort": "80"
 }