prepare for release

Author: themsaid

composer.json

@@ -33,10 +33,10 @@
     ],
     "require": {
         "php": ">=5.6.4",
-        "illuminate/events": "^5.3@dev",
-        "illuminate/notifications": "^5.3@dev",
-        "illuminate/queue": "^5.3@dev",
-        "illuminate/support": "^5.3@dev",
+        "illuminate/events": "5.3.*",
+        "illuminate/notifications": "5.3.*",
+        "illuminate/queue": "5.3.*",
+        "illuminate/support": "5.3.*",
         "pusher/pusher-php-server": "2.5.0-rc4"
     },
     "require-dev": {
@@ -59,5 +59,6 @@
     "config": {
         "sort-packages": true
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }