v4.2

This minor release covers 3 issues and 11 pull requests. This is a bug fix release masquerading as a minor release, one small added feature and no breaking changes.

Bugs fixed

• Add data-required validation to radio button input type. Typically, where radio buttons are used one option is selected as a default, but the validation code should be available to radio buttons as well as checkboxes #567 #628
• Remove default image padding on staff-listing-detailed under a 2-column container, this had been causing an uneven border #627
• Update nested list styles, and add full display to samples #626
• Fix a variable name regression in the Google Maps component that was preventing pins from showing #625
• Allow section filter and tag filters to be independently omitted in Filtered Listing (previously, both were required) #623
• Remove constraining width of news index when wrapped inside a section #619
• Remove unnecessary vendor prefixes in CSS #617
• Fix centring of modals on IE11 and below #616
• Add hard jump to tab position on page load for Firefox, to prevent unexpected scroll to footer on a tabbed page #528 #630

New feature

• Add 21:9 / 2.35:1 / cinemascope aspect for video embeds (this can be done by adding the class video--21-9 along with the standard video class, an example is provided in the documentation) #620 #621

Other changes

• Add a pre-opened accordion example in the documentation #629