axel, libhid, minicom: alioth.debian.org/frs/download.php URL changed

```
http://alioth.debian.org/frs/download.php/nnnn/foo-0.1.2.tar.bz2
```
is now
```
http://alioth.debian.org/frs/download.php/file/nnnn/foo-0.1.2.tar.bz2
```