* feat(aria): Add aria-labels to underlabelled tab nav items

The drawer tabs which control primary navigation are only labelled by a title which is not available to many screenreaders. Add an aria-label attribute to each link to improve readability with screenreaders. Organize link attributes so link target is first followed by classname.
Issue #1349

* feat(aria): Replace abstract aria role of section with region

Abstract aria roles such as section should not be used in content. Use non-abstract 'region' aria role instead. That role expects an aria-labelledby attribute with an id. Pass an ID to the column header. Remove the aria-label attribute on the ColumnHeader because the same value is output in plaintext as its child.
Issue #1349

* fix(aria): Remove aria-controls attribute until solution is found

Columns do not have wrappers, so these icons can't point to a column wrapper which it controls. Instead these icons function as triggers to show or hide individual columns.
#1349

* fix(typo): Remove type of aria-labelledby instead of aria-label

* add og:url to stream_item view

* add og:url and text to about/show

* add og:url to profile, followers and follows pages

This change allows to update TabsBar according to route changes.

oc variable is missing on the second liste

This fixes outbound salmon requests to remote GNU Social instances

* Add html lang attributes around statuses

* Remove urls from language detection

* Add spec coverage for settings/two_factor_auth area

* extract setup method for qr code

* Move otp required check to before action

* Merge method only used once

* Remove duplicate view

* Consolidate creation of @codes for backup

* Move settings/2fq#recovery_codes to settings/recovery_codes#create

* Rename settings/two_factor_auth#disable to #destroy

* Add coverage for the otp required path on 2fa#show

* Clean up the recovery codes list styles

* Move settings/two_factor_auth to settings/two_factor_authentication

* Reorganize the settings two factor auth area

Updated to use a flow like:

- settings/two_factor_authentication goes to a #show view which has a button
  either enable or disable 2fa on the account
- the disable button turns off the otp requirement for the user
- the enable button cycles the user secret and redirects to a confirmation page
- the confirmation page is a #new view which shows the QR code for user
- that page posts to #create which verifies the code, and creates the recovery
  codes
- that create action shares a view with a recovery codes controller which can be
  used separately to reset codes if needed

* Fix #1057 (close #1819) - Move HTML-formatted bio from <poco:note /> to <summary type="html" />

* Ensure <poco:note /> is plaintext for remote accounts, also, by stripping out HTML

* Added API backend for notification dismissal

* Added render statement

* Changed statement

We used some random Arabic characters to test that the various RTL
conditions got triggered.

* Remove deprecated features at React v15.5

- [x] React.PropTypes
- [x] react-addons-pure-render-mixin
- [x] react-addons-test-utils

* Uncommented out & Add browserify_rails options

* re-add react-addons-shallow

* Fix syntax error from resolve conflicts

* follow up 59a77923b3

* add Indonesian (Bahasa Indonesia) translation

add id.jsx
add translations on email views
add devise.id.yml
add doorkeeper.id.yml
add id.yml
add simple_form.id.yml

update id locale on mastodon.jsx, index.jsx, settings_helper.rb, and
application.rb

* add Indonesian (Bahasa Indonesia) translation

add id.jsx
add translations on email views
add devise.id.yml
add doorkeeper.id.yml
add id.yml
add simple_form.id.yml

update id locale on mastodon.jsx, index.jsx, settings_helper.rb, and
application.rb

* fix InvalidLocaleData on a string

* fix InvalidLocaleData on a string

* Fix language keys in Indonesian ruby locale (id)

Use "id" instead of "en" as object keys.

* Removed obsoleted translation (id)

* Add Ido (io) translation

* Fix mastodon.jsx for io reference

There is no react-intl support for io. Removed the references.

For the 'time ago' value of stream entry simple statuses and the timestamp value
of detailed statuses - output their UTC value and use the browser timezone to
convert locally.

This commit fixes hashtag_html so it correctly handles matches with multiple hash-signs.

Bug located by @over9001, initial fix suggested by @nightpool.

* Hides superluous details on small screans.

* Addressed feedback from #2175.

* Fix #2195 - Set locale to error pages

* Fix #2195 - Cut duplicate process into one method

Fix #2199 and minifying assets file.

jQuery v1.x is supports legacy browsers.
But, Mastodon does not support legacy browsers.
I think jQuery v1.x is unnecessary.

Like it's already done when you click on an application from a toot, it's opening in a new window.
0254ee9795/app/views/stream_entries/_detailed_status.html.haml (L41)

* Adds version.

* Cleans up code.

* Removes standalone endpoint and adds version to instance endpoint.

* Addresses feedback from #2181.

* Update hr.jsx

* Update and rename simple.form.hr.yml to simple_form.hr.yml

fixed file name

* Update hr.yml

* Update hr.yml

* A bit of more explanation

* Update nl.yml

* That's more elegant

* More consistent and adding missing translation

* Update

* Update

* Added Dutch onboarding modal strings

* Add missing fields group on preferences page

* Clean up settings/preferences controller

* Extract a UserSettingsDecorator

* Repair most egregious mistakes

The deployed changes broke the pedagogy and curriculum built into the design of the onboarding modals, which had been reviewed and approved by various other contributors. While the changed layouts of the pages make some of the original decisions impossible to re-implement without substantial work, these changes should at least make the modals not outright terrible. 

The empty confusing description of Mastodon was replaced with an actual basic explanation of federation. The language was modified to be friendly and conversational again. Grammatical errors were fixed. The explanations of local and federated timelines were re-ordered to be in the direct that the menus go, top to bottom, and the sentence was re-added which explains that they are what "public timelines" refers to (since this phrasing is used elsewhere in the UI) and suggests the user use them to discover who to follow. A figure of the profile picture that lives above the compose box was padded to page two to serve as a landmark for less technically literate users to easily find the compose box and understand that the next page is moving upwards, so that they can find the search bar. 

Ideally, the elephant artwork should be either removed or replaced with something less depressing.  Room should be made to point users at the notifications column's settings icon because "how do I turn off the notification noise" is one of the most asked questions of new users and those icons are not easily noticeable. This last part may be made obsolete if the settings UI is later re-worked.

* Change copy

This commit addresses copy change suggestions made in the PR discussion

* Add periods to ends of sentences missing periods
* Made "Home" "Federated" "Local" and "Notifications" lowercase
* Separate explanation of "connecting" and the word "instance" into two sentences, to make the sentence less dense.

* Alphabetically order translation keys

* Fix some missing gender neutral translations in french

* Add a comment to remind contributors to order translations by key

* Add render_views for admin/settings spec

* Add coverage for admin/settings#update

* Add coverage for admin/settings typecasting open_registrations setting

* Simplify how admin/settings finds the value for updating

* Rely on activerecord to not update a value that hasnt changed

* Add coverage for non-existent setting

* Use a constant for boolean settings

* Fix #2120 - Use Status#as_tag_timeline on public hashtag page

* Update tags_controller.rb

* Fix #2108 - Fix gif uploads
Add specs for media attachment gifv conversion

* Add ffmpeg to travis

* Make travis install ffmpeg, not libav

* Switch travis to trusty