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

Issue #2547707 by kekkis, screon, deepakaryan1988, latikas, jhodgdon, hussainweb, teemuaro, Crell, HeimdallJHM: Split routing documentation out of menu.api.php

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

Issue #2358369 by balagan, Katiemouse: getParameters() vs. getRawParameters() on RouteMatch should not be documented the same

Issue #2238217 by effulgentsia, neclimdul, martin107, tim.plunkett, cweagans, kim.pepper, xjm: Introduce a RouteMatch class.