Adding masto.raildecake.fr, french instance 🌻🐘

Use autohiding scrollbars in Microsoft Edge

added instance

Added digitalhumanities.club instance

Update Production-guide.md

Add social.bytestemplar.com to instances list

Added im-in.space

Add niu.moe, cuz it's kawaii

Update List-of-Mastodon-instances.md

Update Administration-guide.md

Update Heroku-guide.md

Add HackerNewsBot

I have created a bot that will post Hacker News stories with 100+ points. Adding it to the list.

the syntax for running the rake task wasn't correct.

Email service options :P

Fix npm/yarn cache cleaning

Cleaning up the heroku admin command bit to match the form used in Administration-guide.md and clarify the wording a bit.

change suggested cipher for nginx

Update heroku instructions

Add specs for PostStatusService

DRY up reblog vs original status check

typo

Implement pending specs on Status

Implement the two pending specs on `Status`: `reblogs_count` and
`favourites_count`.

These are currently user facing errors, but are not localized. This adds the
ability for these messages to be localized.

This implements all pending specs, and adds additional coverage for the
following functionality:

* Normal status creation
* Creating a reply status
* Creating a sensitive status
* Creating a status with spoiler text
* A status with no spoiler text gets an empty string for spoiler text
* Creating a status with custom visibility
* Creating a status for an application
* Processing mentions
* Processing Hashtags
* Pinging PuSH hubs
* Crawling links
* Attaching media

Checking reblog vs original status was happening in multiple places
across the app. For views, this logic was encapsulated in a helper
method named `proper_status` but in the other layers of the app, the
logic was duplicated.

Because the logic is used at all layers of the app, we extracted it into
a `Status#proper` method on the model and changed all uses of the logic
to use this method. There is now a single source of truth for this
condition.

We added test coverage to untested methods that got refactored.

There are currently not specs for the two media validations that are performed
by `PostStatusService`. This adds specs for the validations that ensure that you
cannot attach more than four files, and that a status cannot have both image and
video attachments.

Fix nil#object_type error

Allow setting of default language through config