add auto update feature

app/Space/SiteApi.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Laraspace\Space;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\RequestException;
+
+trait SiteApi
+{
+
+    protected static function getRemote($url, $data = array())
+    {
+        $base = 'https://codeload.github.com/';
+
+        $client = new Client(['verify' => false, 'base_uri' => $base]);
+
+        $headers['headers'] = array(
+            'Accept'        => 'application/json',
+            'Referer'       => url('/'),
+            'crater'        => getFullVersion()
+        );
+
+        $data['http_errors'] = false;
+
+        $data = array_merge($data, $headers);
+
+        try {
+            $result = $client->get($url, $data);
+        } catch (RequestException $e) {
+            $result = $e;
+        }
+
+        return $result;
+    }
+}