Specifically, fix failures when any of the fields from the parsed
comment are None, such as author, author_url, etc.
(failure due to string concatenation when building urls).
This is likely not a big deal since it is already assumed that video file server logs are not plugged into
Google's tracking infrastructure, but it doesn't hurt to give less info.
The default urllib3 max redirect amount was set to 3. Change it to 10 and
do not fail if there is a problem with checking for URL access. Just print
the error to the console and proceed.
Also add an unrelated remark about the bcptr=9999999999 parameter in watch.py
403 errors on the video urls happen typically when a video has copyrighted content or was livestreamed originally. They appear to not happen (or at least happen less frequently) if the Tor exit node used ipv6, however.
These occur when too many requests are coming from a Tor exit node.
Before, there would be an error page with an exception instructing users to report the issue.
But this is an expected and persistent issue.
