Issue #2614764 by snehi, priya.chat, rakesh.gectcr, anil280988, amit.drupal, jhodgdon: Wrong @param doc in class Composer

(cherry picked from commit b8c2f8f2)

(cherry picked from commit ad0a90f3)

(cherry picked from commit 3d91345e)

Issue #2623940 by alexpott, Berdir: ConfigInstaller tries to install optional config with missing dependencies

(cherry picked from commit cd068ef4)

Issue #2528498 by Wim Leers, Jacine, mortendk: Only emit Quick Edit data- attributes when actually necessary

(cherry picked from commit fa5efed8)

Issue #2672600 by borisson_, arunkumark, Mile23: Replace deprecated usage of  entity_create('node') with a direct call to Node::create() in comment,datetime,editor,field,hal,system,taxonomy,views

(cherry picked from commit 348aa684)

(cherry picked from commit 6e5de2b5)

(cherry picked from commit 74d7b55b)

Issue #2502917 by dimaro, rakesh.gectcr, DuaelFr, suhel.rangnekar: Replace deprecated usage of entity_create used with variable entity types with a direct call to EntityManager::getStorage()->create()

(cherry picked from commit 0e454b55)

Issue #2674780 by esclapes, catch, penyaskito, dawehner: Unexpected API change in UrlGenerator::generate()

(cherry picked from commit ce887237)

Issue #2281691 by xjm, mikeryan, Gábor Hojtsy, alexpott, tim.plunkett, webchick, abhishek-anand, quietone, yoroy, stevepurkiss, benjy, Bojhan, Ryan Weal, aleksip, anavarre, hussainweb, er.pushpinderrana, cilefen, Luukyb, Jo Fitzgerald: User interface for migration-based upgrades

Issue #2678770 by alexpott, tstoeckler, Gábor Hojtsy: Random fail with third party shortcut settings schema on seven theme

Issue #2678978 by thpoul, Wim Leers: Change United Nations official languages URL in LanguageManager

Issue #1993928 by BarisW, Wim Leers, thpoul, effulgentsia, mgifford, Gábor Hojtsy, Hanno, Pancho, Bojhan: Language of parts: Introduce a language toolbar button

Issue #2679547 by Wim Leers: Fix random fail in ConfigImportAllTest caused by ModuleInstaller not rebuilding routes immediately, which happens to be surfaced by BigPipe

Revert "Issue #1993928 by BarisW, Wim Leers, thpoul, mgifford, Gábor Hojtsy, Hanno, Pancho, Bojhan: Language of parts: Introduce a language toolbar button"

This reverts commit 11344070.

Issue #1993928 by BarisW, Wim Leers, thpoul, mgifford, Gábor Hojtsy, Hanno, Pancho, Bojhan: Language of parts: Introduce a language toolbar button

Issue #2469431 by Wim Leers, Fabianx, swentel, nod_, yched, dawehner, tstoeckler, catch, borisson_: BigPipe for auth users: first send+render the cheap parts of the page, then the expensive parts

Issue #2678564 by alexpott, Gábor Hojtsy: A missing schema to support migrate UI - source_base_path and database_state_key

Revert "Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities"

This reverts commit 694994fe.

This reverts commit f71ec898.

Issue #2649914 by claudiu.cristea, lokapujya, dawehner: Enforce formatter dependencies on views fields

Issue #2364343 by damien_vancouver, criz, ksenzee, joegraduate, Neograph734, droplet, pounard, jp.stacey, ciss: Fix robots.txt to allow Google access to CSS, JavaScript and image files

Issue #2671446 by heykarthikwithu, mikeker: The Boolean field formatter does not provide a settings summary

Issue #2522950 by pguillard, LewisNyman: Taxonomy term reference settings form: "Vocabularies" and "Create referenced entities..." look related