react-tools has been deprecated

It looks like the gulp build command requires react-tools to process the scripts. I'm stuck, so I'll leave this here so someone smarter than me can update the gulpfile.js items.

```
npm WARN deprecated react-tools@0.12.2: react-tools is deprecated. For more information, visit https://fb.me/react-tools-deprecated
```

```
server:Picard Jesse$ gulp build
[14:52:41] Using gulpfile ~/Documents/Websites/www.mysite.dev/wp-content/themes/Picard/gulpfile.js
[14:52:41] Starting 'styles'...
[14:52:42] Finished 'styles' after 596 ms
[14:52:42] Starting 'scripts'...

events.js:72
throw er; // Unhandled 'error' event
^
Error: EMFILE, open '/Users/Jesse/Documents/Websites/www.mysite.dev/wp-content/themes/Picard/node_modules/react/package.json'
```

Start with gulpfile.js and run the reported `gulp build` command to reproduce the failure involving react-tools and node_modules/react/package.json. Trace the scripts task and determine the required update for the deprecated dependency; done means the build completes without the reported deprecation-related failure.

Written by the indexing model from the issue text.