Feature Request: Windows 8-style notifications

```
It'd be nice if the notifications would show up in Windows 8's style at the top
left corner of the screen. This would show on top of most programs and would
help with determining if the mic is muted more easily.

Aside from that, a "show mic status" key would be nice, as well as an option to
mute Windows' zero-latency monitoring when the mute hotkey is pressed.
```

Original issue reported on code.google.com by `Momotom...@gmail.com` on 13 Mar 2014 at 8:19