Forward port 3.4.0 release

Author: Xerkus

CHANGELOG.md

@@ -32,7 +32,7 @@ All notable changes to this project will be documented in this file, in reverse
 - [#230](https://github.com/zendframework/zend-servicemanager/pull/230) fixes a
   problem in detecting cyclic aliases, ensuring they are detected correctly.
 
-## 3.4.0 - TBD
+## 3.4.0 - 2018.12.22
 
 ### Added
 

composer.json

@@ -23,7 +23,7 @@
     "require": {
         "php": "^7.1",
         "psr/container": "^1.0",
-        "zendframework/zend-stdlib": "^3.1"
+        "zendframework/zend-stdlib": "^3.2.1"
     },
     "require-dev": {
         "mikey179/vfsStream": "^1.6.4",