Issue #2978575 by mcdruid, Ayesh, Ronino, fietserwin, emilcarpenter,...

Issue #2978575 by mcdruid, Ayesh, Ronino, fietserwin, emilcarpenter, elijahoyekunle, berenddeboer, Mixologic, almaudoh, tfranz, izmeez, TR, Charlie ChX Negyesi, joseph.olstad, mmjvb, gisle, MustangGB, ronlee, pyQlo, TrevorBradley, alexpott, mfb, Fabianx, Andrés Chandía, buddym, rjt1224, saxmeister, Pol, shenzhuxi, sjerdo, aparna_kondala, seamus_lee, andrew_rs, bernig, andyrandom, xpiku, Kevin Morse, SivaprasadC, lakshmi_a, vensires, waqarit, joergM: Mysql 8 Support on Drupal 7