Closure Library v20171203

New Additions

• Provide safe API for module loading.
• Add new HTML5.1 tags to goog.dom.TagName.
• Add goog.date.Date.fromIsoString() and goog.date.DateTime.fromIsoString() for control over the return type.
• Add goog.dom.safe.setVideoSrc
• Changed zippy and animatedzippy to allow role override for improved accessibility.
• Implement a simple delegate system.

Backwards Incompatible Changes

• Add protected getThumbCssClass method to goog.ui.Slider.
• Disallow passing string or goog.Uri to Jsonp.
• Delete deprecated API for module loading.
• Fix bug in SliderBase's drag handling while in RTL mode to correctly calculate the new slider value.
• Delete deprecated goog.editor.Field#setHtml.
• Change all non-mutating functions in goog.array to accept IArrayLike instead of Array.
• Delete goog.html.testing.testTypedStringEquality.

Other Changes

• Remove the goog.string dependency from goog.asserts.
• new WebChannelOptions.clientProfile to support custom configs, e.g. for mobile/cellular clients.
• Updated some goog.testing.PropertyReplacer examples to use replace instead of set, and pointed out the possible need for goog.reflect.objectProperty.
• WebChannel supports dynamic timeout config for back-channel requests. This is a backward compatible change.
• Fixed a bug to avoid starting traces with the same id.
• Use standard 'focusin' and 'focusout' events.
• Remove the delay between onload and test initialization.
• Fixed a bug in goog.vec.Quaternion.fromRotationMatrix4.