Updated composer.json

Author: Walter

composer.json

@@ -27,6 +27,9 @@
         "phpunit/phpunit": "3.7.*"
     },
 	"extra": {
-		"installer-name": "Autodate"
+		"installer-name": "Autodate",
+        "branch-alias" : {
+            "dev-master": "1.1.*-dev"
+        }
 	}
 }