Patch for compiling with QT 5.4

```
Only tested in linux.

QStandardItemModel renamed setRoleNames to setItemRoleNames
Some header location changed
Q_WS_X11 not used anymore
```

Original issue reported on code.google.com by `luxsalis...@gmail.com` on 22 Jan 2015 at 5:10

Attachments:
- [dukto-qt5.4.patch](https://storage.googleapis.com/google-code-attachments/dukto/issue-40/comment-0/dukto-qt5.4.patch)
