Merging export logic with debian.pub.demlabs.net

Added export to debian.pub.demlabs.net into build scripts for debian (stretch, buster) and ubuntu (bionic)

prod_build/general/chroot_wrap.sh

@@ -48,4 +48,5 @@ done
 #[ $(mount | grep "/run/schroot/mount") ] && sudo umount -l /run/schroot/mount && sudo rm -r /run/schroot/mount/* #Removing mountpoint odds.
 
 cd $wd
+
 exit $errcode