metatag 8.x-1.0-beta5

This includes a number of fixes from beta4, along with a whole host of new meta tags.

Notes:

• The Token module is now required.
• It may be necessary to run core/rebuild.php after updating the module.

Full changelog since v8.x-1.0-beta4:

• #2563623/#2674732/#2675208 by DamienMcKenna, esclapes, NickWilde, achton: Quote submodule strings to avoid YAML compatibility problems.
• #2658242 by mr.baileys: Default meta tags were not translated into the entity's language.
• By DamienMcKenna: Added mr.baileys to the D8 contributors list :)
• #2664276 by DamienMcKenna, StevenPatz, rajeev_drupal: Wrong default base class for generated tag plugins.
• #2665790 by benjy, Sam152: Use StringTranslationTrait in MetaNameBase.
• #2666384 by mr.baileys, Rudrasis, danisha: Added 'configure' link to the module on the Extend page.
• #2563625 by mr.baileys, juliencarnot: All Twitter Cards have been ported.
• #2674078 by Raphael Apard: The Generator meta tag is a META tag, not a LINK tag.
• #2664448 by mr.baileys: DrupalConsole generator for meta tag groups.
• #2663650 by mr.baileys: Caught another small bug in the tag generator.
• #2672892 by borisson_: Replaced usage of LoggerChannelFactory with LoggerChannelFactoryInterface.
• #2678196 by mr.baileys: Simplified usage of isAdminRoute().
• #2631408 by mikeyk, juampynr, DamienMcKenna: Filter out HTML from meta tags and improve image meta tag handling.
• #2631826 by juampynr, DamienMcKenna, pguillard: Require the Token module.
• #2667850 by mikeyk: Token method was not renamed properly.
• By DamienMcKenna: Fixed group name on MetatagTranslationTest.
• #2684495 by mikeyk, DamienMcKenna: Fixed bug in translations that was causing the tests to fail. Also tidied up the tests a little.
• #2685355 by mikeyk: Fix image identification.