Merge pull request #1 from Gosha/greentext

Use greentext format when formatting blockquotes
Merge pull request #2 from Gosha/greentext

Show greentext everywhere
Made 
 to be spoiler text
URLs containing % or %25 doesn't break markdownify
Merge pull request #3 from Gosha/fix-percent-url-breaking-stream

URLs containing % or %25 doesn't break markdownify
Added support for webm uploads
Merge remote-tracking branch 'origin/outerheaven' into outerheaven
Remove logging of <blockquote>s