Examples are broken

To reproduce:
- go to http://ol3js.org/en/master/examples/full-screen.html
- set the mode to Development
- set the mode to Production (so that the URL becomes http://ol3js.org/en/master/examples/full-screen.html?mode=compiled)

No map is shown and the console contains:
```
GET http://ol3js.org/en/master/css/ol.css 404 (Not Found) full-screen.html:7
GET http://ol3js.org/en/master/build/ol-compiled.js 404 (Not Found) loader.js?id=full-screen:79
  (anonymous function) loader.js?id=full-screen:79
  (anonymous function) loader.js?id=full-screen:86
Uncaught ReferenceError: ol is not defined full-screen.js:1
  (anonymous function) full-screen.js:1
```

This is probably related to #1038.