CHANGELOG

v1.0.1:
	date: 2015-06-10
	changes:
		- Initial public release
v1.1.1:
	date: 2015-09-04
	changes:
		- Adds Travis hooks
		- Adds Sauce Labs
		- Encodes HTML in descriptions
		- Updates messages and help URLs
v2.0.0:
	date: 2016-03-01
	changes:
		- Adds support for AMD modules
		- Fixes incompatibility with Webpack
		- Improvements to rules and checks
		- Help urls no longer hard-coded
		- Improved error handling
v2.0.3:
	date: 2016-04-12
	changes:
		- Security improvements
		- Build includes Babel/ES6
		- Improvements to table rules
		- aXe can be loaded in Node
v2.0.4:
	date: 2016-04-13
	changes:
		- Improvements to messaging for extensions
v2.0.5:
	date: 2016-04-20
	changes:
		- Support for UMD pattern
		- Adds 508 tagging for table rules
		- Fixes race condition for iframes
		- Exclude actual nodes from array checking
v2.0.7:
	date: 2016-09-28
	changes:
		- Add TypeScript definition v1
v2.1.7:
	date: 2016-12-13
	changes:
		- Add promise-based axe.run API method in favor of axe.a11yCheck
		- Move TypeScript definition to root of project
		- Add Inapplicable and Can't Tell results
		- New rule: frame-title-unique
		- Improvements to table rules: td-has-header, th-has-data-cells
		- Color contrast rule performance improvements using polyfilled elementsFromPoint
		- Add better support for implicit roles
		- DQElement supports xPath
v2.1.8:
	date: 2017-02-21
	changes:
		- Move from Snyk to Retire.js
		- Make CI run test-fast task instead of parallel
		- Add documentation on writing integration tests and rules
		- Allow a larger list of languages for HTML-valid-lang rule
		- Add support for [role=img] in image-alt rule
		- Fix bug with innerHeight in get-background-color
		- Improve dom.is-offscreen function
		- Integrate optional performance timer
		- Empty include defaults to document
v2.2.0:
	date: 2017-04-24
	changes:
		- Add configuration options for iframes: false, selectors: false, and elementRef: true
		- Improve color-contrast rule for disabled elements
		- Add webdriver task for testing mobile viewports
		- Improve audio/video captioning rules
		- Improve th-has-data-cells rule
		- Expose incomplete reasons for color contrast rule as part of Needs Review
		- Implement rule groupings as tags
		- Allow building of axe in multiple languages
		- Empty-heading rule has impact: moderate
v2.2.1:
	date: 2017-05-19
	changes:
		- Remove nodes from the color contrast incompleteData API to avoid circular references
v2.2.2:
	date: 2017-05-25
	changes:
		- Stabilize incompleteData API for backwards compatibility
		- Change impact of duplicate-id rule to moderate
v2.2.3:
  date: 2017-06-01
  changes:
    - Removed the disable property from link-in-text-block
v2.3.0:
	date: 2017-06-14
	changes:
		- Overhaul of selectors API
		- New experimental rule for hidden-content
		- New rule for flagging aria-hidden="true" on document.body
		- Color-contrast rule impact is now serious
		- Color-contrast fixes for implicit labels and TR elements
		- Color-contrast puts 1:1 ratio elements into Needs Review/incomplete
		- List category mappings in docs
		- Update axe.source to work with Firefox webdriver
v2.3.1:
	date: 2017-06-15
	changes:
		- Improvements to hidden-content rule
		- Deduplicated langs in valid-lang options
v3.0.0-alpha.1
	date: 2017-08-08
	changes:
		- Shadow DOM support: rules and checks now supply a `virtualNode` in addition to the light DOM `node`. No <slot> styling support until supported by Chrome
		- All commons and utilities refactored to support Shadow DOM
		- Tests all refactored to support Shadow DOM
		- API docs and developer guide now cover developing for Shadow DOM
		- Fix for impact of incomplete nodes (#356)
		- Fix for combobox false positive (#160)
	additions:
		- Commons virtual methods for handling virtual DOM
		- New axe.utils.querySelectorAll method for querying the flattened tree
		- New core APIs and test utilities for Shadow DOM development
		- Support for ARIA 1.1: role=feed, role=term, aria-placeholder, aria-modal,
    aria-current, aria-keyshortcuts, role=treegrid, aria-orientation, aria-haspopup