Include fixes from 7.x-1.23

7.x-1.23

[ ] | #2853251 by kpaxman: Code to use only first item doesn't work if first item is blank
[ ] | #2924181 by Mike Lewis: Default Value for Robots on config form does not reflect stored configuration
[ ] | #2958206 by DamienMcKenna: Fix hreflang tags for entity_translation.
[ ] | #2956465 by DamienMcKenna, alexpott: Make sure $_GET['page'] is an integer.
[ ] | #2945589 by ron_s: Apostrophe encoded in page title when using Panels substitutions
[ ] | #2933194 by ocastle: Issue with URL Decoding panel substitutions.
[ ] | #2950652 by Les Lim: metatag_favicons_get_mime_type() is mostly wrong.
[ ] | #2872206 by jenlampton: Drush command for importing from Page Title throws fatal
[ ] | #2903980 by DamienMcKenna, Chris Charlton: Undefined index in metatag_token_info.

[ ] | #1624266 by L-four, angrytoast: Add support views bulk operations for mass updating metatags
[ ] | #2309017 by DamienMcKenna, rodrigoaguilera, nmillin, John_B, David Hernández, ctarres, cmseasy, computerbarry, skein, erwangel, espurnes, zmove: Automatically trim meta tag lengths.
[ ] | #2832101 by DamienMcKenna, jenstechs: hreflang tokens should support Content Translation
[ ] | #2932401 by DamienMcKenna: New tag: Set-Cookie.
[ ] | #1282806 by DamienMcKenna, iamEAP, osopolar, victoriachan, malcomio, HyperGlide, Murz, dandaman, klokie: Upgrade script for Meta Tags Quick.
[ ] | #2932110 by thejimbirch: Update Description's meta description to 320 chars (for 2018).
[ ] | #2143979 by bpleduc, drunken monkey, DamienMcKenna, thirdender, davidthou: Allow Views meta tags to "Use replacement tokens from the first row".
[ ] | #2906312 by DamienMcKenna: Added the twitter:dnt meta tag.

[ ] | #2854539 by DamienMcKenna, jalpesh, zhouhana: http://drupal.org instead of https://www.drupal.org in default generator tag
[ ] | #2864078 by DamienMcKenna: Improve coding standards on Metatags 7.x-1.x.
[ ] | #2872446 by DamienMcKenna, jenlampton: Complete the drush command for importing nodewords meta tags.
[ ] | #2946145 by DamienMcKenna, bkosborne: Remove usage of deprecrated each() function for PHP 7.2+ future proofing.
[ ] | #2933940 by DamienMcKenna: og:image must be at least 200x200 otherwise it is ignored by Facebook.
[ ] | #2931744 by DamienMcKenna: Fix tests for the 7.x-1.x branch, testXssMetatagConfig has a regression.
[ ] | #2929487 by volkswagenchick, porkloin: Typo in metatag_dc.install, aka "Dublin" misspelled by the guy from Ireland.
[ ] | #2882769 by DamienMcKenna: List Schema Metatag as a related module.