Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

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

Using the language_manager wrapper function to return a language whether or not we're in the requet scope

Issue #1496542 by cosmicdreams, sun, chx, vasi1186, aspilicious, alexpott, nadavoid, Pedro Lozano, disasm, andypost | heyrocker: Convert site information to config system.

- Patch #1510686 by cosmicdreams, vasi1186, webflo, disasm: replace remaining references to global () with drupal_container().

- Patch #1497230 by Rob Loach, pdrake, effulgentsia: Use Dependency Injection to handle object definitions.

- Patch #1222106 by Gábor Hojtsy, plach, xjm: Unify language negotiation APIs, declutter terminology.

- Patch #1416392 by Gábor Hojtsy, plach, rvilar: clean up language (types) bootstrap function naming and documentation.

Issue #1430986 by Gábor Hojtsy, plach: Clean up naming for language negotiation configuration functions/paths.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

- Patch #642782 by plach, Dave Reid, greggles, mfb: hook_language_init() is a bootstrap hook and needs bootstrap_invoke_all().

#282191 follow-up by plach: Remove ambitious parts of translatable fields UI from core that are no longer relevant, given what made it into Drupal 7.

#565480 by plach and peximo: TF #2: Multilingual field handling. Integration between field API and locale module + translatable node bodies.

#326539 by JohnAlbin, sun, cha0s, ultimateboy, Rob Loach, Damien Tournoud: Convert 'class' attribute to use an array, not a string.