Issue #2603236 by dbazuin, Pepino710, lomasr, tomgilissen, criscom, alimac, yoroy, Sutharsan, ifrik, BarisW, YesCT, xjm: Improvement help text Recipient field

Issue #1939092 by mgifford, dbazuin, jenlampton, azinoman, pwieck, Cottser, joelpittet, larowlan: Convert theme_mark() to Twig.

Issue #2091299 by amitgoyal, mparker17, jhodgdon, InternetDevels, berkas1, dbazuin: Update hook_help for Comment module