fixed version

Author: fehguy

package.json

@@ -6,7 +6,7 @@
     "email": "[email protected]"
   }],
   "description": "swagger-client is a javascript client for use with swaggering APIs.",
-  "version": "2.1.0",
+  "version": "2.1.0-M2",
   "homepage": "http://swagger.io",
   "repository": {
     "type": "git",