Issue #2666792 by bojanz, dawehner, kristiaanvandeneynde, edysmp, heddn: Provide a route provider for add-page of entities (follow-up)

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

Issue #2638856 by bojanz, webflo, SiliconMind: Unable to install modules with core dependencies via composer

Issue #2666792 by bojanz, dawehner, edysmp, heddn: Provide a route provider for add-page of entities

Issue #2578995 by pguillard, jhodgdon, r_sharma08, ifrik, snehi, Manjit.Singh, himanshugautam, yoroy, xjm: Update the link descriptions on the Configuration page for the system module

Issue #2281393 by ultimike, mrjmd, bdone, quietone, Xano, vendion, benjy, brockfanning, alexpott: D6->D8 Blocks - Custom titles not imported

Issue #1475510 by timmillwood, hussainweb, davidwbarratt, alexpott, Mile23, pfrenssen, claudiu.cristea, webchick, catch, Crell, patcon, RobLoach, kim.pepper, dawehner, neclimdul, Mixologic, gagarine, sun, nod_, effulgentsia, drumm, Sylvain Lecoy, jhedstrom, katbailey, xjm, klausi, Seldaek, Barryvdh: Remove external dependencies from the core repo and let Composer manage the dependencies instead

Issue #2680057 by alexpott, dawehner, isntall: Allow to not override the simpletest results on a new test run

Issue #2661200 by jhodgdon, Wim Leers, Cottser, Mile23, vijaycs85, larowlan, andypost, tim.plunkett, dawehner: Make admin/help page more flexible, and list tours on it

This reverts commit 72b17f95.

Issue #2658412 by leolando.tan, lokapujya, rakesh.gectcr, harsha012, thisisit, zweishar, miteshmap: Config API topic makes no mention of getEditable()

Issue #2248223 by olli, Lendude, peterg.griffin, finne, mikeker, pjonckiere, b0unty, ohthehugemanatee, zniki.ru, dawehner, jhodgdon, effulgentsia, xjm, droplet, metzlerd: Adding a new Views filter and making it exposed returns user back to list of filters

Issue #2679953 by malavya, subharanjan, AjitS, aditya_anurag, mikebell_, jhodgdon: Replace mentions of url() in docs

Issue #2684319 by TravisCarden, jhodgdon: ConfigFormBaseTrait::config() @return doxygen is inaccurate

Issue #2676026 by dimaro, subharanjan, Girish-jerk, zaurav, jhodgdon: Correct documentation of ThemeNegotiatorInterface

Issue #2680307 by metzlerd, jhodgdon: Direct people to Services and Elements pages on API sites in a clearer way

Issue #2628132 by joshi.rohit100, id.medion, jordanpagewhite, anil280988: Replace setter inject and internal methods on LocaleConfigManager with constructor injection

Issue #2683263 by claudiu.cristea, alexpott: Update text for views_post_update_image_style_dependencies() wrong

Issue #2683763 by amateescu: Referenceable bundles should be sorted by Label, not by their machine name

Issue #2177335 by drintios, idebr, czigor, oo0shiny, bdimaggio, samiullah, alexpott: Selecting 'Disabled' does not move the block to the disabled region when there are no disabled blocks

Issue #2670978 by dawehner, isntall, jibran, alexpott: Allow to run just specific types when running all tests

Issue #2609680 by alexpott, jhedstrom: Add an AssertMailTrait to allow mail testing in Kernel tests and fix odd stdout not found in test output

Issue #2572545 by pguillard, snehi, peezy, lokapujya, mahavir003, miteshmap, harsha012, hosttor, Manjit.Singh, HezzieB, jhodgdon: Update the UI texts for the Custom Block module

Issue #2676816 by xjm: Consolidate miscellaneous docs from class @file docblocks into the class docblocks

Issue #2608692 by snehi, r_sharma08, anil280988, marvin_B8, rakesh.gectcr, ashhishhh, malavya, heykarthikwithu, kaushalkishorejaiswal, jhodgdon: Revise docblock for BookManager methods

Issue #2626106 by Wim Leers, gceja, thpoul: The image button does not work unless width+height attributes are allowed, even though those are optional