Bump composer reqs for 1.0.0

extensions/nicknames/composer.json

@@ -17,7 +17,7 @@
         }
     ],
     "require": {
-        "flarum/core": "^0.1.0-beta.16"
+        "flarum/core": "^1.0.0"
     },
     "autoload": {
         "psr-4": {
@@ -26,7 +26,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "0.1.x-dev"
+            "dev-master": "1.x.x-dev"
         },
         "flarum-extension": {
             "title": "Nicknames",