chore(packaging): add npm run pui-update command

[Finishes #96481372]

package.json

@@ -145,7 +145,8 @@
     "pui-react-typography": "^0.1.0"
   },
   "scripts": {
-    "test": "node_modules/gulp/bin/gulp.js ci --fatal"
+    "test": "gulp ci --fatal",
+    "pui-update": "scripts/pui-update.js"
   },
   "repository": {
     "type": "git",

scripts/pui-update.js

@@ -0,0 +1,20 @@
+#! /usr/bin/env node
+
+var fs = require('fs');
+var exec = require('child_process').execSync;
+
+var packageJson = JSON.parse(fs.readFileSync('./package.json'));
+var allDependencies = Array.prototype.concat.call(
+  Object.keys(packageJson.dependencies),
+  Object.keys(packageJson.devDependencies)
+);
+var puiDependencies = allDependencies.filter(function(dependency) {
+  return (dependency.match(/pui-css-/) || dependency.match(/pui-react-/));
+});
+
+puiDependencies.forEach(function(dependency) {
+  console.log('Updating ' + dependency + '...');
+  exec('npm update ' + dependency);
+});
+
+console.log('Done!');