* Thread toot notification mails by conversation

* Make codeclimate happy and avoid potential mis-threading

* In detail status view, display attachment uncropped if there's only one

* Make media spoiler the size of the media it hides, enable on static

630px = Drawer + 1 Column

* Fix numbers in accounts columns

* Support edge compact-header

* Add emoji autosuggest

Some credit goes to glitch-soc/mastodon#149

* Remove server-side shortcode->unicode conversion

* Insert shortcode when suggestion is custom emoji

* Remove remnant of server-side emojis

* Update style of autosuggestions

* Fix wrong emoji filenames generated in autosuggest item

* Do not lazy load emoji picker, as that no longer works

* Fix custom emoji autosuggest

* Fix multiple "Custom" categories getting added to emoji index, only add once

* Switch from EmojiOne to Twemoji, different emoji picker

* Make emoji-mart use a local spritesheet

* Fix emojify test

* yarn manage:translations

* Fix the migration error when deprecated_preview_cards has deleted

* Re-run Travis CI

This addresses a comment during review:
https://github.com/tootsuite/mastodon/pull/4801#discussion_r139337452

This means we'll need to make sure that all _id columns going forward
are bigints, but that should happen automatically in most cases.

* Make dropdowns render into portal, expand animation

* Improve actions modal style

When colon appears end of line, skiped all character containing unicode emojis. Fixed.
https://github.com/tootsuite/mastodon/pull/5016#issuecomment-331012008

* Reduce wasted renders for column_loading.js

* Use defaultProps

Currently we're using a list of MIME types for `accept` attribute on `input[type="file"]` for filter options of file picker, and actual file extensions will be infered by browsers. However, infered extensions may not include our expected items. For example, "image/jpeg" seems to be infered to
only ".jfif" extension in Firefox.

To ensure common file extensions are in the list, this PR adds file extensions in addition to MIME types. Also having items in both format is encouraged by HTML5 spec.

https://www.w3.org/TR/html5/forms.html#file-upload-state-(type=file)

* Add Japanese translations for multiple themes

* Change Japanese translation for custom emoji's created_msg.

* Oauto code string

* Theme, custom emoji and more

* Site theme

* added two spaces wierdly gone away

* Update oc.yml

Changes adviced

* Add japanese translations for custom emoji.

* Remove spaces.

* Change destroyed_msg.

* Revert "Change destroyed_msg."