* v3.17.6
* release(3.17.6): rebuild dist
* add failing tests
* fix Link component
* fix OnlineValidatorBadge component
* switch from <a> to <Link> in operation components
* make Markdown inputs safe
* use Link component in Info block, for target safety
* add eslint rule for unsafe `target` usage
* set new bundlesize goal
* preserve `GeneratorFunction` instead of all function names
* use js-yaml fork that doesn't require esprima
* set HTML content directly, instead of using React-Markdown
* use remarkable for all Markdown rendering
* add babel-plugin-transform-react-remove-prop-types
* remove SplitPaneMode plugin
* remove react-collapse
* remove AST plugin, and yaml-js
* trim Markdown HTML string output before rendering
* disable obsolete function name preservation
* add `getComponent` to propTypes
* swap `sanitize-html` for `dompurify`
* set up node enzyme tests with jsdom
dompurify, as the name suggests, needs a DOM or it won't work!
* reconcile tests and sanitizer settings
* remove obsolete sanitizeOptions
* add `jsdom` dependency
* Add UnitTest for images
allows image elements with https scheme
* Test images with data scheme
* Add allowedSchemesByTag
* Fix error Strings must use doublequote quotes
