Changeset 10775 for sites/trunk/wordpress.org/public_html/wp-content/plugins/handbook/inc/importer.php

Handbooks: Add ability to import handbook content from a remote source.

• Add WPorg_Handbook_Importer class, incorporating related functionality from DevHub theme
• Add 'cron_interval' and 'manifest' handbook config options
• Add get_importer() and init_importer() to handbook object