chore(zone.js): update to 0.5.8

fixes angular#4531

Author: vicb

npm-shrinkwrap.clean.json

@@ -11482,7 +11482,7 @@
       }
     },
     "zone.js": {
-      "version": "0.5.7",
+      "version": "0.5.8",
       "dependencies": {
         "es6-promise": {
           "version": "3.0.2"

npm-shrinkwrap.json

@@ -30,7 +30,7 @@
   "dependencies": {
     "@reactivex/rxjs": "0.0.0-prealpha.3",
     "reflect-metadata": "0.1.1",
-    "zone.js": "0.5.7"
+    "zone.js": "0.5.8"
   },
   "devDependencies": {
     "angular": "1.3.5",