Issue #3082690 by phenaproxima, bnjmnm, oknate, JeroenT, effulgentsia, xjm, lauriii, webchick, seanB, andrewmacpherson, Wim Leers, DyanneNova, Gábor Hojtsy, cboyden, peterx, rainbreaw, jan.stoeckler, shaal, annagaz, FeyP, chr.fritsch, marcoscano, samuel.mortenson, Berdir, webflo: Mark Media Library as a stable core module