* ref #3958, support utf16 fragments on the deeplink plugin
* put -> head for UTF16 operation
this is a temporary fix, eventually we will run out
of methods and need to use a new targeting strategy
* drop obsolete %20 decoder
* add full test suite for UTF16 operation
* use encodeURIComponent when setting hash
* drop obsolete test cases
* add tests for operation lacking an operationId
* add deep linking tests for tags/operationIds with underscores
* migrate from `_` to `%20` for deeplink hash whitespace escaping
* add backwards compatibility for `_` whitespace escaping
* update util unit tests
* add narrow e2e tests
* add failing system unit test
* break plugin object inheritance in combinePlugins
* style: add braces to if block
* drop unused `lodash.repeat` import
* remove deep-freeze from lockfile
* `test/e2e` -> `test/e2e-selenium`
* add Cypress
* ESLint fixes
* MOAR cypress
* `integration` -> `tests`
* wire Cypress up to a hot e2e server
* linter fixes
* don't run in CI
* use request body schema `required` for marking required urlencoded properties
* don't use sample schema value as a fallback
* modify property layout to mimic regular parameters
* clean up
* use default or example for iniital values
* [Dockerfile] Use `--no-cache` instead of `--update` for `apk add`
To prevent unnecessary cache in the Docker image.
* [Dockerfile] Use `COPY` instead of `ADD` for non tarball file copying
* [Dockerfile] Update base image from Alpine v3.5 to v3.8
* Additional fix of #4048, more error messages from authorization call
Inspect the error and error_description properties of the response, if available
* Fixed linter errors
* add baseline tests
* coerce empty strings to null when updating parameter values
* add ParameterIncludeEmpty
* add redux management for empty parameter value inclusion state
* use name+in keying for state management instead of hash keying
* update new redux method usages to name+in keying
* coerce empty Immutable iterables in onChangeWrapper
* OAS3 tests & support
* add included empty parameters to requests before dispatching to Swagger Client
* make empty inclusion interface prettier
* add tests for #4587
* linter fixes
* check for truthy value before reaching into property
* 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
