Merge pull request #6 from openeuropa/OPENEUROPA-1813

OPENEUROPA-1813: Upgrading to 8.7.

composer.json

@@ -6,22 +6,28 @@
  "minimum-stability": "dev",
  "prefer-stable": true,
  "require": {
- "drupal/core": "^8.6",
+ "drupal/core": "^8.7",
  "php": "^7.1"
  },
  "require-dev": {
  "composer/installers": "~1.5",
+ "consolidation/robo": "~1.4",
+ "consolidation/annotated-command": "^2.8.2",
  "drupal-composer/drupal-scaffold": "~2.2",
  "drupal/config_devel": "~1.2",
  "drupal/console": "~1.0",
  "drupal/drupal-extension": "~4.0.0@beta",
  "drush/drush": "~9.0@stable",
  "openeuropa/behat-transformation-context" : "~0.1",
  "openeuropa/code-review": "~1.0.0-alpha4",
- "openeuropa/drupal-core-require-dev": "^8.6",
+ "openeuropa/drupal-core-require-dev": "^8.7",
  "openeuropa/task-runner": "~1.0-beta4",
  "phpunit/phpunit": "~6.0"
  },
+ "_readme": [
+ "We explicitly require consolidation/robo to allow lower 'composer update --prefer-lowest' to complete successfully.",
+ "We explicitly require consolidation/annotated-command to allow lower 'composer update --prefer-lowest' to complete successfully."
+ ],
  "scripts": {
  "post-install-cmd": "./vendor/bin/run drupal:site-setup",
  "post-update-cmd": "./vendor/bin/run drupal:site-setup"