.hgignore: add vendor tree composer.json: new packages plugins/thunderbird_labels/thunderbird_labels.php: change hook and RFC822 use wrt whitelisting to avoid deprecated stuff index.php: commented debugging hooks others: new releases of vendor packages?

-- Updates from version 0.7

DROP INDEX contacts_user_id_idx;
CREATE INDEX contacts_user_id_idx ON contacts USING btree (user_id, del);
ALTER TABLE contacts ALTER email TYPE text;