Modernize ?setkey; and tackle long-deprecated functions#3399

Merged

mattdowle merged 12 commits intomasterfrom setkey_man_update

Mar 2, 2019

+100-114

Commits on Feb 13, 2019

Commits on Feb 14, 2019

Merge branch 'setkey_man_update' of https://github.com/Rdatatable/data.table into setkey_man_update
Michael Chirico
committed
comment key<- tests
Michael Chirico
committed

Commits on Feb 16, 2019

Commits on Mar 1, 2019

Merge branch 'master' into setkey_man_update
mattdowle
committed