Closes tootsuite/mastodon#1349

This is my first PR and I’m only checking in the source JSX file.
Please let me know if it should be checked in after being built also.

* Stricter whitelist rules

* Linting

* Added spec for blacklisting

* Test subdomain blacklist on domain whitelist

* No need to split

* Change spec name

Based on the device.en file

* proofread & update zh-CN setting form locale

* Pull in new devise zh-CN translations from their wiki

https://github.com/plataformatec/devise/wiki/I18n,
more precisely https://gist.github.com/Artoria2e5/6d2a06ca9e92a417afc627b5000f4690

* pull in zh-CN translation for doorkeeper

... from https://github.com/doorkeeper-gem/doorkeeper-i18n/pull/31/

* Convert to "container-based" travis build

Since all ppa sources used are currently whitelisted by Travis, why don't we convert to a "sudo-less" structure that promises a shorter build start time?

* Explicitly disable sudo in Travis

* Adds logging for daily tasks.

* Fixes Code Climate issues in #2438.

Set status action bar to have display flex and center align items so dropdown icon appears center aligned with other icons. Make styles alpha organized.

Add hover state to boost icon - lighten color on hover.

This PR fixes I18n.locale for rake middlewares. Mastodon uses Devise that depends on Warden.
Warden::Manager can be found in rake middleware. It is outside of the controller.

In the case of authentication failed, warden calls throw(:warden). At the time Warden::Manager
delegates request to failure_app to generate response and flash[:alert] after catching it.
Unfortunately, I18n.locale is already reset then because I18n.with_locale is enabled only
inside the controller. If we used I18n.locale=, Devise::FailureApp could get the current locale.

* Login link for single user instances

* Flip the if statement around
Fixes AuthorizationController tests

* Change ActivityPub paging to match spec. Clean up ActivityPub outbox changes.

* Fix code style and test failures for OutboxController.

* Attempt to fix CI errors.

duplicates. Web UI regenerates UUID for that header every time the compose
form is changed or successfully submitted

Also, fix Farsi i18n overwriting the English one

Settings page contained labels in Persian, when I was using English.

* Makes username above toot box into a link.

* Prepends username above toot box with an @.

* Fix #2119 - Whenever about to send a HTTP request, normalize the URI

* Add test for IDN request in FetchLinkCardService

* Perform IDN normalization on domains before they are stored in the DB

* Persian translation

* adding :fa to make the site use the rtl stylesheet

based on [this comment](https://github.com/tootsuite/mastodon/pull/2405#issuecomment-296721105)

* fix missing quotes

* add 'fa' locale

#2338

* fix(upload): Only show upload modal when drag even contains files

* fix(firefox): Close drag window ondragend also

Do not only end drag styles on drag leave, but also on drag end. Fixes firefox bug. #687

* fix(drag-modal): Remove drag modal trigger cruft

* fix(upload-modal): Allow close with escape button

* Add failing spec for oauth/authorized_applications controller

* Use explicit reference to flashes partial from admin layout

Because some of the controllers which use the admin layout do not inherit from
application controller, this partial is not in their view path.

Hide some components rather than unmounting them to allow to show again
quickly and keep the view state such as the scrolled offset.

ref #2359

- https://github.com/tootsuite/mastodon/pull/2359#discussion_r112838771
- https://github.com/tootsuite/mastodon/pull/2359#discussion_r112838772
- https://github.com/tootsuite/mastodon/pull/2359#discussion_r112838812
- https://github.com/tootsuite/mastodon/pull/2359#discussion_r112838823
- https://github.com/tootsuite/mastodon/pull/2359#discussion_r112838829

* Expose media attachments on reported statuses directly

* Comment out unused bulk report checkbox. Add title to report comment for viewing full comment. Add 'contents' column, with icons and numerical indicators to show the number of referenced statuses and media attachments in the report

* Link account name on authorize_follow card back to account

* Add localisation string for report_contents

* Show new admin accounts card partial on report view. Apply simple_format to report comment so newlines are preserved.

* Add new admin accounts card partial, for display quick useful admin stats (e.g. report history, moderation status).

* Fix localized variable

* Make private toots get PuSHed to subscription URLs that belong to domains where you have approved followers

* Authorized followers controller, stub for bulk action

* Soft block in the background

* Add simple test for new controller

* Rename Settings::FollowersController to Settings::FollowerDomainsController, paginate results,
rename "private" post setting to "followers-only", fix pagination style, improve post privacy
preferences style, improve warning style

* Extract compose form warnings into own container, show warning when posting to followers-only with unlocked account

* Add link for domain in land strip

* Use root_path

* Avoid repeating code

for #2181

Float detailed status display avatar left. Only apply display block to display names in status info, not in detailed status. Thanks to @nightpool for finding those. Make star icon in notification show up as gold. Add anchor selector back to status__content__spoiler-link in order to override default anchor style elsewhere.

Add an ID to the CW spoiler input field to give aria-controls a handle on it. Pass that id to the CW trigger button. Modify text icon button component to accept aria controls id value. Add aria-expanded value to text icon button to indicate when it is expanded.

* Add failing spec showing that human_locales does not match what i18n knows about

* Add missing `ar` key for arabic to human locales

* Remove duplicate `id` key from available locales

* Sort keys in human locales list

* Add spec for human_locale helper