Issue #1943142 by jessebeach: Add the main element to the list of HTML5 elements that get set to display block.
Issue #2011578 by mortendk, tlattimore, Cottser, soulston: Markup for Stark's page.html.twig + maintenance-page.html.twig.
Merge pull request #219 from jenlampton/html5-page

Issue #200: Backport Converting page.tpl.php & maintenance-page.tpl.php to HTML5.
Issue #197: Removed theme_book_title_link() use l() instead.
Merge pull request #221 from Twinmat/238a

Issue #1943142 by jessebeach: Add the main element to the list of HTML5 elements that get set to display block.
Merge pull request #229 from ronliskey/197-ron-2

Issue #197: Removed theme_book_title_link() use l() instead.
Issue #2234611 by visabhishek, cs_shadow, joachim: Fix up docs for drupalCreateRole test method.
Issue #1885420 by cs_shadow, kim.pepper, xjm: Fix docs for metadata on node access queries.
Issue #2195357 by Rajendar Reddy, GoddamnNoise, Pol: Fix docs in hook_block_info().
Issue #535616 by jhodgdon, rootwork, ianthomas_uk, pwolanin, oriol_e9g | tgeller: Make Content Ranking settings for Search not say "weights" to avoid confusion.
Issue #2037847 by droplet: Join position strings together to fix translatability in the administrative interface for the Image module "Crop" effect.
Issue #2051519 by GoddamnNoise: Fix errors in registry.inc docs.
Issue #2216945 by asrob | rodtatham: 'filter_xss' duplicated in list.
Issue #2215877 by asrob | sreynen: Hook_ajax_render_alter() is missing & in function signature.
Merge pull request #230 from quicksketch/223/biolithic-merge

Issue #222: Drupal 7 cross-ports.
Merge branch '1.x' of github.com:backdrop/backdrop into 1.x