[enh] simplified mediawiki response processing

def response(resp):

    search_results = loads(resp.text)

    results = []

    res = search_results.get('query', {}).get('search', [])

    if not len(res):

        return results

    for result in res[:int(number_of_results)]:

        results.append({'url': url + 'wiki/' + quote(result['title'].replace(' ', '_').encode('utf-8')), 'title': result['title']})

    return results

    return [{'url': url + 'wiki/' + quote(result['title'].replace(' ', '_').encode('utf-8')),

        'title': result['title']} for result in res[:int(number_of_results)]]