2.3.0 / 2020-02-17
==================
**General**
* During setup, admins can register their email address with the CTFd LLC newsletter for news and updates
* Fix editting hints from the admin panel
* Allow admins to insert HTML code directly into the header and footer (end of body tag) of pages. This replaces and supercedes the custom CSS feature.
* The `views.custom_css` route has been removed.
* Admins can now customize the content of outgoing emails and inject certain variables into email content.
* The `manage.py` script can now manipulate the CTFd Configs table via the `get_config` and `set_config` commands. (e.g. `python manage.py get_config ctf_theme` and `python manage.py set_config ctf_theme core`)
**Themes**
* Themes should now reference the `theme_header` and `theme_footer` configs instead of the `views.custom_css` endpoint to allow for user customizations. See the `base.html` file of the core theme.
**Plugins**
* Make `ezq` functions available to `CTFd.js` under `CTFd.ui.ezq`
**Miscellaneous**
* Python imports sorted with `isort` and import order enforced
* Black formatter running on a majority of Python code
* Adopting a challenge type layout from deckar01
* Move standard challenge modals into the plugin
* Migration to change challenge type id to a string
* Travis testing now builds with MySQL, SQLite, and Postgres
* Rework get_standings to use the row ID instead of the saved time because of differences in database time precision
* Switching to Flask-Migrate to create tables/database. Adding Hints & Unlocks.
* Adding db.create_all call for sqlite db's (sqlite is not properly handled with alembic yet)
* Python 3 testing works properly with 3.5
* Adding admin side of hints
* Hints are viewable for users
* Use <int:xxx> in routes to prevent some errors 500 (#192)
* Use first_or_404() to prevent some errors 500 (#193)
* Add a populating script for awards. (#191)
* Creating upload_file util
* Marking 1.0.0 in __init__ and starting database migrations
* Upgrading some more HTML
* Adding CHANGELOG.md
Kevin Chung