Merge branch 'hotfix/2878' into develop

Conflicts:
	library/Zend/File/Transfer/Adapter/AbstractAdapter.php
	library/Zend/File/Transfer/Adapter/Http.php
	tests/ZendTest/Log/Writer/AbstractTest.php
	tests/ZendTest/Log/Writer/DbTest.php

src/Http.php

@@ -172,8 +172,8 @@ protected function parseUserInfo()
     public function getPort()
     {
         if (empty($this->port)) {
-            if (array_key_exists($this->scheme, self::$defaultPorts)) {
-                return self::$defaultPorts[$this->scheme];
+            if (array_key_exists($this->scheme, static::$defaultPorts)) {
+                return static::$defaultPorts[$this->scheme];
             }
         }
         return $this->port;