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

Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class.

Revert "Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class. Broke core tests after commit."

This reverts commit c80c3e18.

Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class.

Revert "Revert the revert of Issue #1849004 by chx, xjm: One Service Container To Rule Them All. It was innocent after all."

This reverts commit a1638b87.

This reverts commit 761ac679.

Issue #1608842 by chx, alexpott, sun, effulgentsia, beejeebus, tim.plunkett et al: Replace list of bootstrap modules, enabled modules, enabled themes, and default theme with config.

Alex Bronstein authored Sep 21, 2012 and Alex Bronstein committed Oct 01, 2012

This is mostly temporary measures to work around bootstrap circular
dependencies until those are fixed.

Issue #1215104 by sun, lucascaro, effulgentsia: Use the non-interactive installer in WebTestBase::setUp().

Issue #1730754 by sun: Fixed UpgradePathTestBase::performUpgrade() does not always load all new modules after upgrade.

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

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