WP 7.0+ & apiVersion 3 #40

Just want to raise an issue around this console warning being thrown in WP 7.0 and the (intended) future of the iframed editor in regards to this (incredibly useful) plugin.

The block "query-filter/post-type" is registered with API version 2. This means that the post editor may work as a non-iframe editor. Since all editors are planned to work as iframes in the future, set the apiVersion field to 3 and test the block inside the iframe editor.