t: fix running w/o site or user configuration

Some tests are not skipped correctly in the absence of site/user
configuration.
rose documentation: fix pre-initial-cycling reference
Merge pull request #1214 from benfitzpatrick/doc.fix-swt-phrasing

rose documentation: fix pre-initial-cycling reference
Merge pull request #1213 from matthewrmshin/fix-t-on-empty-site-conf

t: fix running w/o site or user configuration
isodatetime: update to 2014-03-17-g9d23336
Merge pull request #1215 from benfitzpatrick/isodatetime.update

isodatetime: update to 2014-03-17-g9d23336