version 1.2-0 on CRAN 2020-02-21

CRAN version 1.1-1

version 1.1-0

version 1.0-1 submitted to CRAN

version 0.9.23

version 0.9-21 uploaded to CRAN

Merge branch 'master' into develop

0.9-18

version 0.9-15

last version before requiring gsw