Currently, we don't allow users to remove the `main_image` of an article once it has been set. It can be changed, but never removed.
This change allows the `main_image` to be removed by checking for the `cover_image` key in the frontmatter that is sent along in the article's markdown. This means that a user should be able to remove the image associated with an article by removing the value of `cover_image:` from their frontmatter.
* Create podcast as a user [WIP]
* Sample css for podcast form
* Nicer podcasts suggesting form
* Validate podcast feed_url
* Validate podcast main_color_hex
* Fix podcasts specs
* Fix form appearance
* Placeholder for podcast main_color_hex
* Provide a link to suggest a podcast
* Add a checkbox and a role for when a podcast is added by an owner
* Prettier checkbox in the podcasts form
* Added creator to podcasts
* Set the podcast creator
* Fix the /pod spec
* Added creator information to the internal podcast page
* Added cta class to the podcasts submit button
* Global notice when a podcast was suggested
Co-authored-by: Ben Halpern <bendhalpern@gmail.com>
* Add specs for ArticleImageUploader
* Add specs for BadgeUploader
* Add specs for CoverImageUploader
* Add specs for ProfileImageUploader
* Refactor uploaders to inherit from BaseUploader
* Strip EXIF and GPS data from uploaded images
* Add ImageMagick to the docs
* Protect strip_exif
* Add system test to create article from the editor
* Move article creation from API to app controller
* Fix system test to edit posts
* Move article update from API to app controller
* Rewrite create article API using API key
* Add main_image and canonical_url to allowed creation params
* Rewrite update article API using API key
* Fix tests and have Comments API inherit from API
