v1.1.0

Updated tslint-microsoft-contrib dependecy and included the following new rules:

• react-a11y-accessible-headings
• react-a11y-iframes
• react-a11y-input-elements
• react-a11y-mouse-event-has-key-event
• react-a11y-no-onchange
• react-a11y-required

v1.0.0

Initial release. Extracted all react-a11y-* rules from tslint-microsoft-contrib into a separate config.