Updating post-create-project-cmd in composer.json

This commit will add the correct steps to the post-create-project-cmd to make this project work with the new Laravel installer.

composer.json

@@ -58,7 +58,10 @@
             "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
         ],
         "post-create-project-cmd": [
-            "@php artisan key:generate --ansi"
+            "@php artisan key:generate --ansi",
+            "@php -r \"file_exists('database/database.sqlite') || touch('database/database.sqlite');\"",
+            "@php artisan migrate --graceful --ansi",
+            "@php artisan vendor:publish --tag=cachet"
         ],
         "dev": [
             "Composer\\Config::disableProcessTimeout",