#1280: add rename_setting function to upgrade API
Merge pull request #1387 from benfitzpatrick/1280.upgrade-rename-func

rose.upgrade: add `rename_setting` function to API
Upgrade to isodatetime-2014.08.0-8-ga7f42b1
Fix set calendar mode to integer

This was triggering a KeyError.
Test `rose task-env` in non-cycling mode