Issue #1276908 by jessebeach, nod_, moshe weitzman, lewisnyman, webchick: Fixed Administrative tables are too wide for smaller screens.

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

Issue #1493108 by marcingy, Mike Wacker, sun, kbasarab, Berdir, Rok Žlender, cosmicdreams, alexpott: Convert logging and error settings to configuration system.

Issue #1373142 by sun, beejeebus, aspilicious, amateescu: Use the Testing profile. Speed up testbot by 50%.

Issue #965300 by Gábor Hojtsy, xjm: Change LANGUAGE_NONE to LANGUAGE_NOT_SPECIFIED; add LANGUAGE_NOT_APPLICABLE and LANGUAGE_MULTIPLE.

Initial move and rename of database classes to PSR-0 namespaces.  So far only MySQL has been converted.

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.

Revert "Issue #22336 by quicksketch, rfay, scor, Rob Loach, boombatower, tstoeckler, kbahey: Move all core Drupal files under a /core folder to improve usability and upgrades."

This reverts commit f0a16bf2.

Issue #22336 by quicksketch, rfay, scor, Rob Loach, boombatower, tstoeckler, kbahey: Move all core Drupal files under a /core folder to improve usability and upgrades.