.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?

language: php
php:
  - 7
  - 5.6
  - 5.5
  - 5.4
before_install:
  - sudo apt-get update -qq
  - sudo apt-get install -y gnupg-agent
script:
  - cd tests
  - phpunit --coverage-text .