Issue #1790920 by alexpott, japicoder, LinL, heyrocker: Move cron_last(), node_cron_last() and common_test_cron() to state system.

Issue #1808200 by sun: Fixed Unit test performance significantly decreased since system list config conversion.

Issue #1696786 by Fabianx, jenlampton, stevector, steveoliver, jwilson3, amateescu, chx: Integrate Twig into core: Implementation issue.

Issue #1664602 by quicksketch, Wim Leers, sun, webchick, nrussell: Fixed drupal_add_js() defer and async options break when aggregation is enabled (Replace with universal attributes array).

Issue #1798724 by andreiashu, Albert Volkman, alexpott: Convert drupal_js_cache_files() to State system.

Issue #1410574 by tim.plunkett, sun, bleen18, danillonunes: Make l() respect the URL query string before adding the 'active' CSS class.

Issue #736172 by fizk: Fixed drupal_goto() should allow absolute destinations that are within the same domain.

Issue #1798724 by andreiashu, Albert Volkman, alexpott: Convert drupal_js_cache_files() to State system.

Issue #1706064 by chx, katbailey, effulgentsia, podarok et al: Compile the Injection Container to disk.

Issue #1326664 by Lars Toomre, Albert Volkman, sven.lauer, tim.plunkett: API docs cleanup for parts of system module and other files

Issue #1608878 by jessebeach, tim.plunkett, dead_arm, nod_, sun, effulgentsia, Everett Zufelt, geerlingguy: Added CTools dropbutton to core.

Issue #1575060 by andypost, mcjim, nod_: Fixed ajax_html_ids() are broken for forms with file element (encoding=multipart/form-data).

Issue #1362974 by droplet, dcam, Jacine, tkrajcar: Remove type='text/javascript' from <script> tags.

Issue #362889 by Xano, andypost, dawehner, Davy Van Den Bremt, cweagans, sun: Move drupal_common_theme() from common.inc into theme.inc.

Issue #1705748 by n3or, tim.plunkett, sun, xjm, boombatower: Convert simpletest settings to configuration system.

Issue #1700382 by Albert Volkman, cam8001: Replace remaining references to drupal_attributes() with new Attributes().