Update dependencies for PHP 7.2 compatibility.

composer.json

@@ -37,7 +37,7 @@
         "zendframework/zend-captcha": "2.7.1",
         "zendframework/zend-code": "2.6.3",
         "zendframework/zend-config": "2.6.0",
-        "zendframework/zend-console": "2.6.0",
+        "zendframework/zend-console": "2.7.0",
         "zendframework/zend-crypt": "3.2.0",
         "zendframework/zend-db": "2.8.2",
         "zendframework/zend-dom": "2.6.0",
@@ -50,10 +50,10 @@
         "zendframework/zend-log": "2.9.2",
         "zendframework/zend-mail": "2.8.0",
         "zendframework/zend-modulemanager": "2.8.0",
-        "zendframework/zend-mvc": "2.7.13",
+        "zendframework/zend-mvc": "2.7.15",
         "zendframework/zend-paginator": "2.7.0",
         "zendframework/zend-serializer": "2.8.0",
-        "zendframework/zend-servicemanager": "2.7.5",
+        "zendframework/zend-servicemanager": "2.7.10",
         "zendframework/zend-session": "2.8.0",
         "zendframework/zend-soap": "2.6.0",
         "zendframework/zend-stdlib": "2.7.7",