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* Search on Google (issue 2)
* Find and use free random proxies (issue 33)
* Extract dates and match different date files (issue 26)
* Limit of processed pages (issue 51 & issue 52)
* Mult operator (*) in argument proxies (issue 55)
* Switch for domain list (issue 39)
* WARNING:urllib3.connectionpool:Connection pool is full, discarding connection (isse 56)
* TypeError: 'NoneType' object is not subscriptable in url.py, line 147 (issue 57)
* Catch UrlInfo read exceptions (issue 58)
* Error in resp.raw.read(MAX_RESPONSE_SIZE, decode_content=True) (issue 59)