Issue #1496654 by alexpott, tobiasb: convert aggregator admin form to configuration system -- add file missed by previous commit

- Patch #1245446 by rocket_nova: the 'recent content' section show useless empty squares for anonymous users.

- Patch #1677304 by socketwench, Niklas Fiekas: Remove drupal_deliver_page(), ajax_deliver(), drupal_deliver_html_page().

Issue #950956 by tim.plunkett, aspilicious, jenlampton, chx, Rob Loach: Remove Dashboard module until/unless such time as it's more useful.

- Patch #1493098 by sun, jcisio, pcambra, Pol, wamilton, Rok Žlender, beejeebus: convert cron settings to configuration system.

- Patch #1671200 by chx, sun, jaimealsilva: Fixed Simpletest broken on 5.4: CURLOPT_COOKIEJAR cannot be NULL on php5-curl version 5.4.4.

Issue #1689394 by mjonesdinero, foobar3000: More complete documentation of field_info_field return value

Issue #1541958 by sun, effulgentsia, alexpott, tim.plunkett, Berdir, David_Rothstein: Fixed Split setUp() into specific sub-methods.

Issue #1500312 by aspilicious, marcingy, sun: Create $config_directory_name() during a D7 => D8 upgrade.

Issue #1592632 by tim.plunkett, sun, Berdir, Rob Loach, aspilicious: Merge List field types into Options module.

Issue #171267 by tim.plunkett, chx, NROTC_Webmaster: Fixed form redirects remove get variables like sort and order.

- Patch #1325628 by damien_vancouver, xjm, Damien Tournoud, TravisCarden: fixed EntityFieldQuery::propertyQuery missing fully qualified column names causes ambiguous column DB error.

- Patch #1471848 by BassistJimmyJam, michaellenahan: user interface text containing URLs in translated part.

- Patch #1304486 by nod_, swentel: completely remove the ability to limit the number of shortcuts per set.

- Patch #1497366 by neclimdul, effulgentsia, EclipseGc, merlinofchaos: introduce Plugin System to core.