* Fix regressions from #2683
Properly format spoiler text HTML, while keeping old logic for blankness intact
Process hashtags and mentions in spoiler text
Format spoiler text for Atom
Change "show more" toggle into a button instead of anchor
Fix style regression on dropdowns for detailed statuses
* Fix lint issue
* Convert spoiler text to plaintext in desktop notifications
* services: scan spoiler_text for hashtags (#699)
* views: link hashtags from spoiler_texts
This covers linking hashtags from within the spoiler
text on the server-generated pages.
* services: fix string concat going into hashtag RE
Cleaner Ruby syntax, may handle immutable strings better