Issue #1174628 by Dave Reid, Niklas Fiekas, ericduran, Jacine: Add new HTML5 FAPI element: search.
Issue #1798724 by andreiashu, Albert Volkman, alexpott: Convert drupal_js_cache_files() to State system.
Issue #641734 by echoz, LewisNyman, davidtrainer, Cottser, falkendk, rteijeiro: Separate generic html elements' style into seven.base.css.
Issue #1468582 by Schnitzel, lewisnyman, dcmouyard, alanburke, tstoeckler, edward_or, janusman: Add mobile friendly meta tags to the html.tpl.php.
Issue #1987066 by Kevin Morse, JohnAlbin, rteijeiro, echoz, ry5n: Rename files to match CSS file naming convention.
Issue #250: Add normalize.css to standarize element display.
Merge pull request #450 from quicksketch/250/normalize

Issue #250: Add normalize.css to standarize element display.
Merge branch '200-search' of https://github.com/jenlampton/backdrop into jenlampton-200-search
Merge branch '200-html' of https://github.com/hellomrcat/backdrop into hellomrcat-200-html
Issue #300: Add search/filter box, drop-buttons, and requirements toggle to modules page.
Issue #300: Add search/filter box, drop-buttons, and requirements toggle to modules page.
Issue #200: Followup to fix broken tests.
Merge pull request #391 from hellomrcat/pr/301

Issue #1798724 by andreiashu, Albert Volkman, alexpott: Convert drupal_js_cache_files() to State system.
Issue #207: Rename files to match CSS file naming convention.
Issue #1468582: Followup to fix tests broken by meta tags change.
Merge branch '1.x' of github.com:backdrop/backdrop into 1.x
Merge branch 'hellomrcat-207-rename' into 1.x
Merge pull request #400 from hellomrcat/207-seven

Issue #641734 by echoz, LewisNyman, davidtrainer, Cottser, falkendk, rteijeiro: Separate generic html elements' style into seven.base.css.
Issue #2067915 by eatings, kjay, bserem: Restore html attributes to maintenance-page.tpl.php.