Rename heights variable
Rename heights variable


Former-commit-id: ab735a65072dbcc38d95a3995b76702a988e971e
exonum/exonum,alekseysidorov/exonum,exonum/exonum,alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum