Added SMTP_FROM_ADDRESS to heroku deploy config

Allows the user to set the address mastodon emails are maraked as being sent from

Fix issue with detailed status view not supporting unreblogging/unfavouriting

Make replies default to privacy settings of the status being replied to

Fix #635 - Include the initially-reported status in report UI even if it's not
among the user's most recent statuses

Fixed the URL

Heroku uses the referrer URL to point at the repo that should be deployed; from this page that includes part of a path that breaks the deployment (specifically /blob/master/docs/Running-Mastodon/Heroku-guide.md).

I've replaced the vanilla address with one that includes a specific reference to the root of the repo

Add memetastic.space to instance list

It's uh, it's an instance now.

Add https://icosahedron.website/

Activity stream background should use $color5

in case of debugging incoming salmons. Add <thr:in-reply-to /> to favourite
salmons because it seems to be required by GS.

Remove toot.zone

toot.zone is being discontinued

StreamEntry model. Simply render Salmon slaps as they are needed

I haven't had a chance to test this, because I don't currently have a fully functioning computer I can set up a dev-environment on, but this *should* make it so when a user toggles a post to be private, a disclaimer appears clarifying what "private" really means.

Add variable for text of privacy disclaimer