WP 4.5 compat: Add `tested` to update fields.
WP 4.5 compat: Add `tested` to update fields.

It appears that WordPress core developers are planning to add the `tested` and `compatibility` fields to the bulk update check API. Previously WordPress had to make a separate API request for each plugin to retrieve this information. See this Trac ticket for details:
 https://core.trac.wordpress.org/ticket/35301
 
 The `tested` field is used to generate the "Compatibility with WordPress X.Y: 100% (according to its author)" message on the "Dashboard -> Updates" page.
 
 Note: This library doesn't support the `compatibility` field, so that's not included.
YahnisElsts/plugin-update-checker,YahnisElsts/plugin-update-checker