Issue #1137920 by jessebeach, lewisnyman, tkoleary, Bojhan, webchick, benjifisher, nod_, sjbassett, kathryn531, effulgentsia, Everett Zufelt: fixed toolbar on small screen sizes and redesign toolbar for desktop.

Issue #1269742 by katbailey, beejeebus, pwolanin, g.oechsler, ksenzee: Make path lookup code into an pluggable class.

Issue #1841442 by damiankloip, dawehner, tim.plunkett: Fixed Contextual filters are broken in the Views UI preview.

Issue #1733476 by greggles, BMDan: Fixed Make default htaccess rules protocol sensitive to avoid man-in-the-middle-attacks if users don't fully customize the rule.

Issue #203955 by pdrake, webchick, andrewsl, iflista: Create database at installation time if the db user has appropriate permissions.

Issue #1830844 by David Strauss: Fixed MTimeProtectedFastFileStorage permissions setting needs to be more liberal.

Issue #985360 by superspring, erikwebb: Fixed Inconsistent punctuation for user.module watchdog messages.

Issue #310315 by Waltemath, justafish, naxoc: Fixed drupal_wrap_mail() strips trailing blanks from standard hyphen-hyphen-space-newline e-mail signature separator.

Issue #345541 by Dave Reid, gisle, kiamlaluno: Link to contact form in user account and e-mails leads to 403.

Issue #514008 by mgifford, Everett Zufelt: Added Allow HTML headings in default Filtered HTML text format.

Issue #1559780 by sun: Fixed Remove ban_ip_action() from core. It blocks the currently logged-in user. (and potentially, your entire team).

Issue #1831808 by marcingy: move remaining file managed queries into field database entity storage controller.

Issue #1836204 by sun, dawehner: Fixed Random test failure in Drupal\system\Tests\Menu\BreadcrumbTest.

Issue #891112 by Berdir, sun, Amitaibu, siharris, Cottser: Replace theme_item_list()'s 'data' items with render elements.

Issue #1751174 by zuuperman, yched: Convert file and image module widgets / formatters to Plugin system.

Issue #1763974 follow-up by neclimdul, sun: Put in temporary entity info hook shiv until conversions are complete.

Issue #1801570 by effulgentsia, klausi, Crell, disasm: DX: Replace hook_route_info() with YAML files and RouteBuildEvent.

Revert "Issue #1801570 by effulgentsia, klausi, Crell: DX: Replace hook_route_info() with YAML files and RouteBuildEvent. This unintentionally broke REST module tests."

This reverts commit 7bf7eb83.