Increase the zend-view requirement

Author: geerteltink

composer.json

@@ -26,7 +26,7 @@
         "zendframework/zend-filter": "^2.6.1",
         "zendframework/zend-i18n": "^2.6",
         "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3",
-        "zendframework/zend-view": "^2.6.5"
+        "zendframework/zend-view": "^2.8.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.7",