Issue #2050835 by Berdir | yched: Move Widget, Formatter, and FieldType plugin types to the Core\Field system.
Issue #2115145 by Berdir | effulgentsia: Move field type plugins to Plugin/Field/FieldType.
Issue #2011082 by jiff, phiit, swentel, pfrenssen: Replace drupal_container() with Drupal::service() in the field module.
Issue #2105983 by mr.baileys, jhodgdon, vijaycs85, a_thakur: Make sure all YML files in Search module have no type-casting to string.
Issue #2061929 by likin, m1r1k, robmc, InternetDevels: Remove calls to deprecated global  from language.module.
Issue #1982256 by mortendk, rteijeiro, tim.plunkett, LewisNyman, tlattimore, yannickoo, ry5n: Clean up html.html.twig markup.
Issue #2106783 by bneil: Move node_requirements() to node.install.
Merge branch '8.x' of http://git.drupal.org/project/drupal