Feature request: Attack from maximum range

```
Currently if i tell my ships to attack, they will encounter the target at
minimum range (lasers). If i want to do distance attack, i have to carefully go
near the target, watching the shot range and then tell them to 'guard'.
Attacking space stations would be comfortable with a 'distance attack' button.
```

Original issue reported on code.google.com by `kli...@gmail.com` on 18 Jan 2014 at 2:45