Updated VuFindHarvest dependency.

composer.json

@@ -25,7 +25,7 @@
         "symfony/yaml": "2.7.6",
         "swagger-api/swagger-ui": "2.2.4",
         "vufind-org/vufindcode": "1.0.3",
-        "vufind-org/vufindharvest": "2.1.0",
+        "vufind-org/vufindharvest": "2.2.0",
         "vufind-org/vufindhttp": "2.1.1",
         "yajra/laravel-pdo-via-oci8": "1.1.1",
         "zendframework/zendframework": "2.4.6",