* Update broken links

There was 2 broken links. I changed same way with Data Module Reference page.

* Update docs/designers-developers/developers/block-api/README.md

Co-Authored-By: cagdasdag <[email protected]>

* Update docs/designers-developers/developers/block-api/README.md

Co-Authored-By: cagdasdag <[email protected]>

* Update glossar with missing terms

* Convert glossary to use dl/dt/dd dtags. Fixes #9976

* Fix TinyMCE link

* remove spacing around tags

* Add template definition, with link

* Updates per review

* Update docs/designers-developers/glossary.md

Co-Authored-By: mkaz <[email protected]>

…12570)

* Add documentation for `safeDecodeURI()` and `filterURLForDisplay()`

* Whitespace

* Consistant Capit… i mean capitalization

* Oxford comma

Co-Authored-By: georgeh <[email protected]>

…12567)

* Cache createBlock call in isUnmodifiedDefaultBlock

* Invalidate cache when default block name changes

* Merge ifs

* Use a menuitemradio role and better labels.

* Restore Button and remove MenuItem import.

* Use template literals.

* Fix e2e tests after the WordPress 5.0 upgrade

* Remove the php unit tests testing the WP5.0 core instead of the plugin

Hiding disabled meta boxes by setting `element.style.display = 'none'`
interferes with plugins like ACF which rely on being able to show and
hide meta boxes using `$.hide()` and `$.show()`.

Hiding the meta box using a new `.edit-post-meta-boxes-area .is-hidden`
class ensures that we don't interfere with third party code.

* Add a word-break style to the facebook embed preview screen to prevent the long embed url from breaking the block boundary

* Fix typo and missing space in scss comment

…tyles before wp-edit-blocks. (#12619)

* get wordcount type from translation

* Add description to explain the options for wordcount type

* Added mylsef into contributors.md. :)

* Fix issue where default appender has icons overlaying the text

This fixes #11425.

It adds padding to the right of the default block appender to fit 3 icons.

* chore: Tweak spelling

* Classic Block: set correct focus back after blur

* Add e2e test

* reset bookmark on mousedown and touchstart

* e2e: Look for aria-label="Add Media" rather than "Insert Media"

* RichText: only set range if different

* Check rangeCount

* Also compare nodes

* Add e2e test

* Simplify

* RichText: Document isRangeEqual

* Testing: RichText: Assure subscriber removal

* Unsubscribe in page.evaluate

* When a post is saved, check for tinymce and save any editors.

* Importing tinymce and using tinyMCE vs the object stored in window.tinymce.

* Updated version number and changelog.

* no longer importing tinymce since we use the tinyMCE global. tinyMCE.triggerSave works now. checking if tinyMCE exists before making the call just in case.

* Using typeof to check for tinyMCE and fixed issues brought up in travis run.

* using window.tinyMCE again to avoid warning RE undefined var

* Restore the package.json version.

* Add e2e tests for the custom wp_editor metaboxes

* Rename functions, removing gutenberg_ and prefixing with wp_

* Remove wp_ prefix to match core

* Remove function check per review

…12737)

* Fixed Deleting an HTML Anchor attribute leaves an empty HTML id attribute

* Fixed Deleting an HTML Anchor attribute leaves an empty

…ay (#10224)

* Try: JS Console warning for when in Quirks Mode

This PR detects whether the browser is in Quirks Mode. Quirks Mode is a rendering method used when the doctype definition is missing or incorrectly placed in the HTML source, causing the browser to have difficulty detecting the type of document it is to render.

This is usually caused by a PHP error, or even just a style tag that is output incorrectly on the page. See discussion in #12455 and #11378.

The usual result is Gutenberg rendering incorrectly, notably with metaboxes overlapping content.

The purpose of this PR is to help developers debug the issue and fix it at the root. As such, it adds a console warning, props @nickcernis for the text:

```
[Warning] Your browser is using Quirks Mode. This can cause rendering issues such as blocks overlaying meta boxes in the editor. Quirks Mode can be triggered by PHP errors or HTML code appearing before the opening <!DOCTYPE html>. Try checking the raw page source or your site's PHP error log and resolving errors there, removing any HTML before the doctype, or disabling plugins.
```

It also augments the documentation to add a note about this.

* Move warning to index.js

* Remove try/catch.

* Tweak: Remove redundant [warning] in warn call

…ers-developers directory in the repo (#12745)

* Rename backwards compatiblity to backward compatibility

* Remove package-lock from commit

* Update CONTRIBUTING.md

Co-Authored-By: mkaz <[email protected]>

* Update CONTRIBUTING.md

Co-Authored-By: mkaz <[email protected]>

* Whitespace in manifest

## Description
Fixes #12539 by updating node-sass to support Node.js 11.

## How has this been tested?
Running `npm install` on macOS 10.14 with Node.js 11.2 without problems.

## Types of changes
Minor dependency bump to support Node.js 11.

## Checklist:
- [x] My code is tested.
- [x] My code follows the WordPress code style. <!-- Check code: `npm run lint`, Guidelines: https://make.wordpress.org/core/handbook/best-practices/coding-standards/javascript/ -->
- [x] My code follows the accessibility standards. <!-- Guidelines: https://make.wordpress.org/core/handbook/best-practices/coding-standards/accessibility-coding-standards/ -->
- [x] My code has proper inline documentation. <!-- Guidelines: https://make.wordpress.org/core/handbook/best-practices/inline-documentation-standards/javascript/ -->