Safari race conditions

The bugbash showed intermittent failures in Safari because of require.js race conditions:

```
Failed to load resource: the server responded with a status of 404 (Not Found)
require-jquery.3f5c3fe4.js:1Error: Script error
http://requirejs.org/docs/errors.html#scripterror
https://oae.oae-qa0.oaeproject.org/shared/oae/api/oae.core.jsFailed to load resource: the server responded with a status of 404 (Not Found)
require-jquery.3f5c3fe4.js:1Error: Script error
http://requirejs.org/docs/errors.html#scripterror
```