Issue #2493911 by dawehner, larowlan, damiankloip, hussainweb, jibran, cilefen, benjy, iMiksu, mtdowling: Update guzzle, goutte and mink-goutte-driver to the latest release

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2511472 by Wim Leers, Fabianx, dawehner: Refactor all usages of drupal_render()/Renderer::render() that break #2450993

Issue #2384675 by sidharrell, cilefen, Mile23, damiankloip, dawehner, Wim Leers, alexpott, neclimdul: Deprecate conf_path()

Issue #2363341 by tim.plunkett, donquixote, adci_contributor: Throw exception in Drupal::service() and friends, if container not initialized yet

Issue #2382195 by tibbsa, subhojit777, tadityar, cilefen, Mile23: Clean-up simpletest module test members - ensure property definition and use of camelCase naming convention

Issue #1719648 by joachim, ttkaminski, kshama_deshmukh: ModuleInstaller::install() silently fails if a module isn't in the file system

Issue #2272879 by clemens.tolboom, alexpott: Fixed Can not run a WebTestBase or KernelTest base tests from inside a simpletest.

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #355157 by valthebald, urbanape: Fixed 302 response code from drupal_redirect_form() violates HTTP/1.1 spec.

This reverts commit 2cd0b096.

This reverts commit 78d18c8d.

Issue #2207767 by temaruk, Coornail, rteijeiro, alexrayu, LewisNyman: Replace watchdog icons with Libricons.

Issue #1938926 by sun, Cottser, joelpittet, pplantinga: Convert simpletest theme tables to table #type.

Issue #2171683 by sun, alexpott, tstoeckler, larowlan: Remove all Simpletest overrides and rely on native multi-site functionality instead.

Revert "Issue #2171683 by sun, tstoeckler, larowlan: Remove all Simpletest overrides and rely on native multi-site functionality instead."

This reverts commit 91db25eb. Broke web
tests.

Issue #2171683 by sun, tstoeckler, larowlan: Remove all Simpletest overrides and rely on native multi-site functionality instead.

Issue #2080401 by Bladedu, mrsinguyen, lokapujya, pfrenssen: Remove Unused local variable  from /core/modules/simpletest/lib/Drupal/simpletest/Tests/SimpleTestTest.php.

Issue #2102539 by andypost: Fixed Current user service should be updated in drupalLogin() and drupalLogout().

Issue #1614186 by RobLoach, tim.plunkett, msonnabaum, Crell, jhodgdon, Niklas Fiekas: Update coding standards for using 'native' PHP classes like stdClass in namespaced code.

Issue #2074037 by Wim Leers, effulgentsia: Add drupalPostUrl() — drupalPost()/drupalPostAjax() are for forms only, D8 JS performs non-form HTTP requests.

Issue #1827112 by alexpott, vijaycs85, dawehner, cspitzlay, cam8001: Convert 'install_profile()' variable to Settings.

Issue #2029033 by narragansett, EllaTheHarpy, deekayen: Fix spacing and section order in Simpletest docblocks.

Issue #2028939 by cilefen, deekayen: Clean up line wrapping in simpletest documentation and make namespaces in docs fully qualified

Issue #1168246 by sun, mgifford, Manuel Garcia, mbrett5062, ry5n, Everett Zufelt, nod_, aspilicious, deviantintegral, tim.plunkett: Freedom For Fieldsets! Long Live The DETAILS.