Latest Comments: Widget now stores latest_comment in a JSON cache file as well as the transient.
Latest Comments: Widget now stores latest_comment in a JSON cache file as well as the transient.

Also added the post_title as an item that gets stored.

Signed-off-by: Paul Hughes <a027184a55211cd23e3f3094f1fdc728df5e0500@paulalexanderhughes.com>

ishan576/wordpress-plugin,muut/wordpress-plugin,ishan576/wordpress-plugin,muut/wordpress-plugin