Use latest pre release version of common plugins

Author: qinezh

.openpublishing.publish.config.json

@@ -277,9 +277,9 @@
     {
       "path_to_root": "_dependentPackages/CommonPlugins",
       "target_framework": "net45",
-      "version": "latest",
+      "version": "latest-prerelease",
       "id": "Microsoft.OpenPublishing.CommonPlugins",
-      "nuget_feed": "https://www.myget.org/F/op/api/v2"
+      "nuget_feed": "https://www.myget.org/F/op-dev/api/v2"
     }
   ]
 }