Issue #2572693 by Mile23, andriyun, andypost, attiks: Fix 'Drupal.ControlStructures.ControlSignature' coding standard

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2337283 by hussainweb, Mile23, alexpott, aleksip, dawehner, heykarthikwithu, naveenvalecha, Crell, xjm, davidwbarratt, Fabianx, jhedstrom, tim.plunkett, larowlan, tstoeckler: Add a composer.json file to every component

Issue #2508231 by timmillwood, amateescu, hussainweb, catch, dawehner, David_Rothstein, Mixologic, effulgentsia: Raise minimum required version of PHP to 5.5.9

Issue #2408371 by dawehner, Fabianx, alexpott, bforchhammer: Proxies of module interfaces don't work

Issue #2491155 by mikeburrelljr, Mac_Weber, opdavies: Update drupal.org and kernel.org URLs in core modules (Follow-up to 2489912)

Issue #1973618 by dawehner, donquixote, plach, Mile23: DIC: Lazy instantiation of service dependencies (ProxyManager for "proxy services")