#549 done

cmd fix

#508 Fixed relations (mistakes were made with wrong data for labels)

#502 related fix in 0.23.1 version. #501 related

#486 done

Merge pull request #438 from nicolay-r/master

Sync with latest updates

#398 related solution in 0.22.1.

#312 fixed

#160 related fix.

#301 fixed