* Add support for an instance actor
* Skip username validation for local Application accounts
* Add migration script to create instance actor
* Make Codeclimate happy
* Switch to id -99 for instance actor
* Remove unused `icon` and `image` attributes from instance actor
* Use if/elsif/else instead of return + ternary operator
* Add instance actor to fresh installs
* Use instance actor as instance representative
Use instance actor for forwarding reports, relay operations, and spam
auto-reporting.
* Seed database in test environment
* Fix single-user mode
* Fix tests
* Fix specs to accomodate for an extra `Account`
* Auto-reject follows on instance actor
Following an instance actor might make sense, but we are not handling that
right now, so auto-reject.
* Fix webfinger lookup and serialization for instance actor
* Rename instance actor
* Make it clear in the HTML view that the instance actor should not be blocked
* Raise cache time for instance actor as there's no dynamic content
* Re-use /about/more with a flash message for instance actor profile
* Redesign landing page (again)
* Move login form in small version to the right column
* Display closed registrations message
* Add site setting for the hero image
* Fix test
* Increase spacing, maximum width, change call to action section
They were redundant, and also had a inconsistency; the button for
"other instances" had an icon for the external link in "more" page, but
it didn't in the other pages.
This unifies the implementation, and the external link icon is now shown
in all the about pages.
* Move site title helper to instance helper (name change only)
* Remove newline in <title> tag
* Add site_hostname helper method to wrap up local_domain value
* Use site_hostname helper in places that need local_domain value
