Issue #2375997 by Mile23, hussainweb, tstoeckler, omers: Avoid tying Drupal 8's composer.json to specific package commits

Issue #1975220 by davidwbarratt, tstoeckler, mradcliffe, RobLoach, Mile23, hussainweb: Allow a Composer user to manage Drupal, modules, and PHP dependencies with a custom root composer.json

Temporary revert; CMF 1.3 is also ready and is a bigger PITA to re-roll.

This reverts commit d806a9bb.

Issue #2234277 by cilefen, hussainweb, Xano, netlooker, martin107: Composer update (includes security fixes).

Issue #2313669 by dawehner, hussainweb, pfrenssen: Bring in egulias/EmailValidator for RFC compliant email address validation.

Issue #2303673 by dawehner, damiankloip, effulgentsia, Fabianx: Implement stackphp; cleanup handlePageCache() and preHandle()

Issue #2316537 by dawehner | chx: Upgrade symfony CMF to 1.2, remove deprecated parameters from getRouteByName* .

Issue #2294439 by dawehner, sun | neclimdul: Add vfsStream library for filesystem mocking in unit tests.

Issue #1959660 by larowlan, pfrenssen, xjm, clemens.tolboom, dawehner, RobLoach: Replace xpath() with WebTestBase::cssSelect() by leveraging Symfony CssSelector.

Andreas Hennings authored Jan 04, 2014 and Angie Byron committed Apr 22, 2014

This affects class loading, plugin discovery and test discovery.

PSR-0 is still supported, and no module class files are moved yet.

Issue #1851234 by alexpott: Slow yaml parsing slows down tests which load/save many config files (e.g. views).

Issue #2176265 by tim.plunkett, donquixote: Set an explicit ["config"]["autoloader-suffix"] in composer.json to avoid noise on composer update.