composer: added nette/utils as dependency (needed for work with UTF-8 strings)

Author: jkuchar

composer.json

@@ -13,9 +13,10 @@
     },
     "require": {
         "php": ">= 5.3.0",
-        "ext-imap": "*"
+        "ext-imap": "*",
+        "nette/utils": "~2.2"
     },
     "require-dev": {
         "nette/tester": "@dev"
     }
-}
+}