Release v0.24.0 (#298)

Author: jkwlui

vision/samples/package.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "@google-cloud/automl": "^0.1.3",
-    "@google-cloud/vision": "^0.23.0",
+    "@google-cloud/vision": "^0.24.0",
     "mathjs": "^5.0.4",
     "natural": "^0.6.1",
     "redis": "^2.8.0",