[fix] gigablast https + url params

"""

 Gigablast (Web)

 @website     http://gigablast.com

 @provide-api yes (http://gigablast.com/api.html)

 @website     https://gigablast.com

 @provide-api yes (https://gigablast.com/api.html)

 @using-api   yes

 @results     XML

number_of_results = 5

# search-url, invalid HTTPS certificate

base_url = 'http://gigablast.com/'

search_string = 'search?{query}&n={number_of_results}&s={offset}&xml=1&qh=0&uxid={uxid}&rand={rand}'

base_url = 'https://gigablast.com/'

search_string = 'search?{query}&n={number_of_results}&s={offset}&format=xml&qh=0&rxiyd={rxiyd}&rand={rand}'

# specific xpath variables

results_xpath = '//response//result'

        query=urlencode({'q': query}),

        offset=offset,

        number_of_results=number_of_results,

        uxid=randint(10000, 10000000),

        rxiyd=randint(10000, 10000000),

        rand=int(time()))

    params['url'] = base_url + search_path