Update branch alias (#609)

Nyholm · web-flow · commit 30c7d5c01c5b · 2017-06-26T10:24:17.000+02:00
diff --git a/composer.json b/composer.json
@@ -41,7 +41,7 @@
     "prefer-stable": true,
     "extra": {
         "branch-alias": {
-            "dev-master": "2.5.x-dev"
+            "dev-master": "2.6.x-dev"
         }
     }
 }
