Ensure that package bundle doesn't get lost on CI

.travis.yml

@@ -3,21 +3,22 @@
   "node_js": [
     "node"
   ],
-  "after_success": [
+  "after_script": [
     'npm install --global slackup',
     'npm run pack',
     './scripts/slack.js'
   ],
+  "before_deploy": "npm run pack",
   "deploy": [
     "provider": "releases",
-    "on": {
-      "tags": true
-    },
     "api_key": {
       "secure": "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"
     },
     "file_glob": true,
     "file": "packed/*",
-    "skip_cleanup": true
+    "skip_cleanup": true,
+    "on": {
+      "tags": true
+    }
   ]
 }