Crashing on timeouts.

[Eliont]

Traceback (most recent call last):
  File "PixivDownloadHandler.py", line 179, in download_image
  File "PixivDownloadHandler.py", line 351, in perform_download
  File "PixivHelper.py", line 801, in download_image
  File "mechanize\_response.py", line 204, in read
  File "socket.py", line 705, in readinto
  File "http\client.py", line 513, in readinto
  File "socket.py", line 705, in readinto
  File "ssl.py", line 1274, in recv_into
  File "ssl.py", line 1130, in read
TimeoutError: The read operation timed out