Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk, olli: Remove all usages SafeMarkup::checkPlain() from render arrays

Revert "Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays"

This reverts commit 31007609.

Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays

Issue #2554585 by Wim Leers, effulgentsia, moshe weitzman: Tracker responses are missing a cache tag and a cache context

Issue #2082315 by Wim Leers, realityloop, mrjmd: Tracker history markers ("new" and "updated" markers, "x new replies" links) forces render caching to be per user

Issue #2484611 by jhedstrom, fgm, Berdir, borisson_, Wim Leers: Tracker responses don't set cache tags & contexts

Issue #2456521 by pjonckiere, mpdonadio, jhodgdon, rteijeiro, David_Rothstein, xjm: Add DateFormatter::formatDiff() as a non-buggy alternative to DateFormatter::formatInterval() when the start and end of the interval are known

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #2401191 by jhedstrom, a_thakur, nlisgo, mohrerao: Activity Tracker shows 'Last updated' status as '45 years 1 week ago'

Issue #2433599 by Wim Leers: Ensure every (non-views) pager automatically associates a matching cache context

Issue #2322439 by subhojit777, akashjain132, znerol, jaimekristene, japo32, ThomWilhelm: Titles in a user's activity tab displays as just text and not a link

Issue #2322509 by prics, cilefen, gaurav.goyal, harijari, Temoor: Replace all instances of node_load(), node_load_multiple(), entity_load('node') and entity_load_multiple('node') with static method calls.

Issue #2277103 by tim.plunkett, pwolanin, Wim Leers, dawehner, hotpizzas: Switch Drupal::l() and LinkGenerator to expect a Url object.

Issue #2343651 by xjm, tim.plunkett, Wim Leers, dinarcon, dawehner: Remove most remaining l() calls.

Issue #2149197 by penyaskito, mikey_p, vijaycs85, herom: Replace format_interval with \Drupal::service('date')->formatInterval().

Issue #2097123 by andypost, roderik, slashrsm, das-peter, mgifford, pfrenssen, YesCT | larowlan: Deprecate comment_num_new() in favour of method on CommentManager.

Revert "Issue #2097123 by slashrsm, roderik, mgifford, pfrenssen, andypost, das-peter | larowlan: Deprecate comment_num_new() in favour of method on CommentManager."

This reverts commit 6532718c.

Issue #2097123 by slashrsm, roderik, mgifford, pfrenssen, andypost, das-peter | larowlan: Deprecate comment_num_new() in favour of method on CommentManager.

Issue #2275877 by Mixologic, duellj, Les Lim, Xano, David Strauss: Replace master/slave terminology with primary/replica.

Issue #2089331 by grom358 | thedavidmeister: [meta] Replace calls to check_plain() with Drupal\Component\Utility\String::checkPlain().

Issue #2171071 by jessebeach, dawehner, chakrapani, longwave, Gábor Hojtsy, xjm, Wim Leers: Rename drupal_add_library() to _drupal_add_library() and remove its uses.

Issue #2078387 by Xano, andypost, twistor, splatio, InternetDevels, amateescu, Berdir, larowlan, vladan.me: Add an EntityOwnerInterface.

Issue #2102487 by vijaycs85, ACF: Add back in tab removed in [#1972990] and remove drupal_set_title() in tracker module controllers.

Issue #2045931 by PerthSam152, LinL, adsw12, joelpittet: Replace all module_exists() deprecated function calls.

This reverts commit cc84f390 - bad
commit message.

Issue #731724 by larowlan, andypost, dixon_, tsvenson: Convert comment settings into a field to make them work with CMI and non-node entities.

Issue #1869600 by linclark, scor, jesse.d: Refactor RDF mappings to be inline with the new Entity Field API.