prepare release 1.0.0

Author: xabbuh

CHANGELOG.md

@@ -0,0 +1,12 @@
+CHANGELOG
+=========
+
+1.0.0
+-----
+
+The is the first stable release using the Symfony Serializer component to
+provide an implementation of the API described by the `php-xapi/serializer`
+package.
+
+Apart from dependency versions being bumped to stable versions this release
+provides the same features as `0.1.0`.

composer.json

@@ -38,7 +38,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "0.2.x-dev"
+            "dev-master": "1.0.x-dev"
         }
     }
 }