Mastodon extractor ignores reblog media

[brachna]

Noticed that reblog media is ignored even with "reblogs":true in config.
I fixed it by:

1. Putting "text-posts": true in config. That will actually collect status with reblog. It doesn't show up otherwise.
2. Putting if status["reblog"]: status = status["reblog"] in MastodonExtractor.items() or status["media_attachments"] will have nothing.

[mikf]

I'd guess this is a behavior change in newer Mastodon releases. The mastodon.py code, including its reblog handling, is a few years old at this time and I'm pretty sure it worked previously.