Travis builds are halting due to an unexpected question from `generate_family_file.py`
```
$ python pwb.py generate_family_file 'https://wiki.musicbrainz.org/' musicbrainz2
Generating family file from https://wiki.musicbrainz.org/
==================================
api url: https://wiki.musicbrainz.org/api.php
MediaWiki version: 1.23.13
==================================
Determining other languages...ab lb
There are 3 languages available.
Do you want to generate interwiki links?This might take a long time. ([y]es/[N]o/[e]dit)
No output has been received in the last 10 minutes, this potentially indicates a stalled build or something wrong with the build itself.
The build has been terminated
```
https://wiki.musicbrainz.org/api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local&format=jsonfm
includes
```
{
"query": {
"interwikimap": [
{
"prefix": "ab",
"local": "",
"language": "\u0410\u04a7\u0441\u0448\u04d9\u0430",
"url": "http://acousticbrainz.org/$1",
"wikiid": "",
"api": ""
},
...
{
"prefix": "lb",
"local": "",
"language": "L\u00ebtzebuergesch",
"url": "https://listenbrainz.org/$1",
"wikiid": "",
"api": ""
},
...
```