Merge branch 'feature/4584' into develop

Close zendframework/zendframework#4584
Fixes zendframework/zendframework#4519

composer.json

@@ -30,13 +30,13 @@
     },
     "suggest": {
         "zendframework/zend-db": "Zend\\Db component",
-        "zendframework/zend-filter": "Zend\\Filter component, required by the Digits validator",
+        "zendframework/zend-filter": "Zend\\Filter component",
         "zendframework/zend-i18n": "Zend\\I18n component to allow translation of validation error messages as well as to use the various Date validators",
         "zendframework/zend-math": "Zend\\Math component",
         "zendframework/zend-resources": "Translations of validator messages",
         "zendframework/zend-servicemanager": "Zend\\ServiceManager component to allow using the ValidatorPluginManager and validator chains",
         "zendframework/zend-session": "Zend\\Session component",
-        "zendframework/zend-uri": "Zend\\Uri component, required by the Uri and Sitemap\\Loc validators"
+        "zendframework/zend-uri": "Zend\\Uri component"
     },
     "extra": {
         "branch-alias": {