hp/kopano-core: My fork of Kopano @ f3a18f2d806dd039ce798dbf8752b784715922d1

Jan Engelhardt f160ba86a2 treewide: simplify small functions to be even smaller		8 lat temu
..
utfutil.cpp	f160ba86a2 treewide: simplify small functions to be even smaller	8 lat temu
utfutil.h	2d60ab3890 treewide: place all symbols into a namespace	8 lat temu