Issue #1798832 by andreiashu, Berdir, heyrocker, aspilicious, johan.gant, typhonius, ACF: Convert https to .

Issue #1899994 by katbailey, plach, YesCT: Disentangle language initialization from path resolution.

Issue #1535868 by EclipseGc, tim.plunkett, xjm, Jody Lynn, sdboyer, naxoc, tizzo, effulgentsia, dawehner, disasm, beejeebus: Convert all blocks into plugins.

Issue #1714462 by n3or, sun, Gábor Hojtsy: Convert language negotiation settings to configuration system.

- Patch #322995 by Schnitzel, c31ck, webflo, penyaskito: provide a distinct administration user interface language option.

Issue #1739994 by pp, das-peter, Gábor Hojtsy: Use the Language class universally instead of stdObj instances.

Issue #1711070 by kid_icarus, tim.plunkett, xjm, droplet, zendoodles and cam8001: Convert tests to use ::$modules property instead of parent::setUp($modules).

Issue #1452188 by Schnitzel, droplet, Sutharsan, Bojhan, Kristen Pol, Gábor Hojtsy, ershov.andrey, perusio, nod_, rvilar, andypost: Added New UI for string translation.

- Patch #1627208 by vasi1186: make language_list() and language_default() return instances of Language.

Issue #1561004 by marcingy, aries, yurtboy, Tor Arne Thune: Many tests still reference locale although they only need language module.