Diva.js 4.0.0

New features in Diva.js 4.0.0:

• International Image Interoperability Framework (IIIF) support
• Book Layout view (facing pages)
• New plugins: Autoscroll (animated page scrolling), Page Alias (pages may have multiple identifiers), IIIF Metadata (displays document metadata from IIIF manifest), IIIF Highlight (displays annotations from a IIIF manifest)
• Improved development workflow (Gulp)
• Support for switching documents without reloading the viewer (by calling changeObject)
• Numerous bug fixes and optimizations (See our commits)

For more details, see the readme.

Note: Some existing features from 3.0 have changed. The breaking changes are as follows (see links for more information):

• We use gulp and npm for development instead of a shell script (build.sh has been removed), and UglifyJS instead of Closure Compiler for Javascript minification.
• Callback functions (onReady, etc), deprecated in 3.0, have been removed and replaced with Events.
• The URL hash parameters used in get/setState now use a v key for 'view' instead of g for 'grid'.
• In the Plugin API, since callback functions are no longer used, the setupHook and destroy are no longer automatically bound—use Events.