* misc-release-tweaks: (38 commits)
Improve markdown support and tweak sponsorship langage
Use Ruby 2.5.5 since that is in the docker dev container
Do not need to specify callback url
attempt to fix the discourse callback URL
use a div with padding.
Help button is weird.
Dropdown menu style tweaks
fix logic for snap sso link
tweak form display in dropdown
Tweak devise modules list
Work on omniauth setup
Minor HTML cleanup
More CSS-y things
BJC-ify a bunch of styles
More wording tweaks
Tweak some wording, html and descriptions for Snap!Con
Enable a bunch more markdown options.
Delete some unnecessary files
attempt one more fix
readd back the group by
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