Granary

Notable changes
* Convert AS2 `Mention` tags to AS1 `objectType` `mention` (non-standard) and vice versa ([snarfed/bridgy-fed46](https://github.com/snarfed/bridgy-fed/issues/46)).
* Twitter:
* Bug fix for large block list fetches that get rate limited after a few successful requests.
* Handle HTTP 403 + error code 200 when fetching retweets for a protected or otherwise unavailable tweet ([bridgy688](https://github.com/snarfed/bridgy/issues/688#issuecomment-520600329)).
* Demote -mentions from [person-tags](https://indieweb.org/person-tag) to [mentions](https://indieweb.org/mention). Specifically, this means they'll no longer get rendered with `u-category` mf2.
* Instagram:
* Disabled in the REST API entirely due to Instagram's aggressive rate limiting and blocking ([bridgy655](https://github.com/snarfed/bridgy/issues/665#issuecomment-524977427)).
* Update scraping to handle replies in new `edge_media_to_parent_comment` field ([164](https://github.com/snarfed/granary/issues/164)).
* Use cookie for all scraping HTTP requests, not just for likes.
* microformats2:
* Revise whitespace handling; use `white-space: pre` CSS in HTML output.
* Facebook:
* Bug fix: don't interpret `photo.php` as username in post URLs.
* Atom:
* Switch from `white-space: pre` CSS back to converting newlines to `<br>`s because some feed readers ([eg NewsBlur](https://forum.newsblur.com/t/android-cant-read-line-pre-formatted-lines/6116)) follow it too strictly and don't even line wrap.
* RSS:
* Default title to ellipsized content.

Notable changes

_Breaking change_: drop Google+ since [it shuts down in March](https://developers.google.com/+/api-shutdown). Notably, this removes the `googleplus` module.

_Warning: the next release, 2.0, will drop Google+ support and the `googleplus` module entirely, since Google+ is shutting down._

Notable changes

* Add RSS 2.0 output! ([124](https://github.com/snarfed/granary/issues/124))
* All silos:
* Switch users' primary URLs from web site to silo profile ([158](https://github.com/snarfed/granary/issues/158)).
* GitHub:
* Don't enclose bare URLs in `<`/`>` ([snarfed/bridgy850](https://github.com/snarfed/bridgy/issues/850)).
* Atom:
* Bug fix for actors and attachments with multiple image URLs.
* Bug fix for attachment author objects with no properties.
* Google+:
* Drop from web UI and REST API since [consumer Google+ is shutting down entirely](https://blog.google/technology/safety-security/expediting-changes-google-plus/) ([more](https://github.com/snarfed/bridgy/issues/846)).
* Switch from deprecated global API endpoint to G+ endpoint. Background in [snarfed/bridgy846](https://github.com/snarfed/bridgy/issues/846), [Google blog post](https://developers.googleblog.com/2018/03/discontinuing-support-for-json-rpc-and.html) [and docs](https://developers.google.com/api-client-library/python/guide/batch).
* Instagram:
* Fix individual photo/video link urls for multi-photo/video posts.
* Handle [user-provided alt text](https://instagram-press.com/blog/2018/11/28/creating-a-more-accessible-instagram/) ([#159](https://github.com/snarfed/granary/issues/159)).
* Twitter:
* Update max video upload size from 5MB to 512MB ([162](https://github.com/snarfed/granary/issues/162)).
* `/url`: Return HTTP 400 when fetching the user's URL results in an infinite redirect.

Notable changes
Add `delete()`. Currently includes Twitter and Flickr support.
* Instagram:
* Make extra HTTP fetch (with cookie) to get individual likes ([snarfed/bridgy840](https://github.com/snarfed/bridgy/issues/840)).
* Update scraping logic to handle feed HTML changes.
* Link -mentions in comments as well as photo/video captions.
* GitHub:
* `create`/`preview_create` bug fixes for issues and comments on private repos.
* Handle HTTP 410 Gone responses from REST API, eg when a repo has been deleted or issues for the repo disabled.
* Twitter:
* Add `delete()` and `preview_delete()` for deleting tweets.
* Flickr:
* Add `delete()` and `preview_delete()` for deleting photos.
* microformats2:
* Add [follow-of](https://indieweb.org/follow) support.
* Only use quotation-of property for quote tweets, not URLs. ([155](https://github.com/snarfed/granary/issues/155))
* If a tag has startIndex/length, it gets linkified in the content, so don't also emit an mf2 child or HTML h-cite for it. ([155](https://github.com/snarfed/granary/issues/155)
* Atom:
* Encode `&`s in author URL and email address too. (Thanks [sebsued](https://twitter.com/sebsued)!)
* AS2:
* Add `Follow` support.

Notable changes
* Twitter:
* Support ISO 8601 formatted created_at timestamps, which the [archive download uses](https://help.twitter.com/en/managing-your-account/how-to-download-your-twitter-archive), as well as RFC 2822 from the API.
* `create()` and `preview_create()`: support RSVPs. Tweet them as normal tweets with the RSVP content. ([snarfed/bridgy818](https://github.com/snarfed/bridgy/issues/818))
* `create()` and `preview_create()`: support alt text for images, via AS1 `displayName`. ([snarfed/bridgy756](https://github.com/snarfed/bridgy/issues/756)).
* Instagram:
* Add global rate limiting lock for scraping. If a scraping HTTP request gets a 429 or 503 response, we refuse to make more requests for 5m, and instead short circuit and return the same error. This can be overridden with a new `ignore_rate_limit` kwarg to `get_activities()`.
* GitHub:
* Add `tag` support to `create`/`preview_create` to add label(s) to existing issues ([snarfed/bridgy811](https://github.com/snarfed/bridgy/issues/811)).
* Escape HTML characters (`<`, `>`, and `&`) in content in `create()` and `preview_create()` ([snarfed/bridgy810](https://github.com/snarfed/bridgy/issues/810)).
* `get_activities()` and `get_comment()` now return `ValueError` instead of `AssertionError` on malformed `activity_id` and `comment_id` args, respectively.
* `get_activities()` bug fix for issues/PRs with no body text.
* Switch from GraphQL to REST API for creating comments and reactions, since GraphQL hits authorization errors on many org repos. ([snarfed/bridgy824](https://github.com/snarfed/bridgy/issues/824))
* Improve GraphQL support for comments and users.
* Atom:
* Shorten and ellipsize feed title when necessary ([144](https://github.com/snarfed/granary/issues/144)).
* microformats2:
* Upgrade mf2py to improve a few things like [implied p-name detection](http://microformats.org/wiki/microformats2-implied-properties) and whitespace handling ([#142](https://github.com/snarfed/granary/issues/142), fixes [#145](https://github.com/snarfed/granary/issues/145), [snarfed/bridgy#756](https://github.com/snarfed/bridgy/issues/756), [snarfed/bridgy#828](https://github.com/snarfed/bridgy/issues/828)).
* Support `alt` attribute in `<img>` tags ([snarfed/bridgy756](https://github.com/snarfed/bridgy/issues/756)).

Notable changes

* Add Python 3 support! Granary now requires either Python 2.7+ or Python 3.3+.
* Instagram:
* Fix scraping profile pages.
* Twitter:
* Update character counting to handle Twitter change that now auto-links *all* ccTLDs. [Background.](kylewm/brevity8)
* GitHub:
* Bug fix for `get_activities()` with deleted issues and repos.
* microformats2:
* `object_to_json()`: convert tags to simple strings in the `category` property, not full nested objects like `h-card`s ([141](141)).
* Special case GitHub issues that are in-reply-to a repo or its `/issues` URL to be objectType `issue`.
* Render simple string categories in HTML output.

This release is intentionally small and limited in scope to contain any impact of the Python 3 migration. It *should* be a noop for existing Python 2 users, and we've tested thoroughly, but I'm sure there are still bugs. Please file issues if you notice anything broken!