Patch for /trunk/apps/maze/index.html

```
target-densitydpi is deprecated
```

Original issue reported on code.google.com by `al.mayn...@gmail.com` on 1 Apr 2014 at 6:19

Attachments:
- [index.html.patch](https://storage.googleapis.com/google-code-attachments/blockly/issue-219/comment-0/index.html.patch)
