Bump the version number to 1.5.2

Author: ArturMoczulski

src/Payload/Notifier.php

@@ -3,7 +3,7 @@
 class Notifier implements \Serializable
 {
     const NAME = "rollbar-php";
-    const VERSION = "1.5.1";
+    const VERSION = "1.5.2";
 
     public static function defaultNotifier()
     {

tests/NotifierTest.php

@@ -29,6 +29,6 @@ public function testEncode()
     {
         $notifier = Notifier::defaultNotifier();
         $encoded = json_encode($notifier->serialize());
-        $this->assertEquals('{"name":"rollbar-php","version":"1.5.1"}', $encoded);
+        $this->assertEquals('{"name":"rollbar-php","version":"1.5.2"}', $encoded);
     }
 }