Fixes to make master branch works as of July 2021

[mihails-strasuns]

Had to poke it a bit to make basic cross-posting functionality work. Will keep adding fixes if I encounter more issues along the way.

[mihails-strasuns]

Note: I also had a problem with the twitter pip package, specifically GetHelpConfiguration was hitting 410 status despite seemingly requesting the correct endpoint. I have circumvented that for now by hardcoding result of the function (i.e. return { "short_url_length": 23, "short_url_length_https": 23}), don't why it fails yet.

[jalada]

help/configuration has been retired so hardcoding is probably fine.