Fix applescript execution issue (System Events reports error) with OS X 10.9 Mavericks

Hello,

Running frank under OS X 10.9 I would receive the following error when invoking ```press_home_on_simulator```:
```
71:158: execution error: System Events got an error: menu item "Home" of menu "Hardware" of menu bar of process "iPhone Simulator" doesn’t understand the “click” message. (-1708)
```

Specifying ```menu bar 1``` instead of ```menu bar``` seems to have resolved the issue.

Thanks,
James