Revert "Bring back export-defaults and update-preferences commands (#163)"
Revert "Bring back export-defaults and update-preferences commands (#163)"

See https://openapsteam.slack.com/archives/dev/p1468208277000697

This reverts commit 7e9c780143cd088755794466e216f325fcc813fa.

PieterGit/oref0,openaps/oref0,openaps/oref0,PieterGit/oref0,openaps/oref0,PieterGit/oref0,PieterGit/oref0,openaps/oref0