cylc/cylc — pull request #284 by hjoliver (2013-02-06 08:14:46+00:00)
Title: Create rundb host directory if necessary.

Closes #253. Validation of new suites (never been run yet) was failing
because the run-db host directory (default ~/cylc-run/SUITE/) did not
exist (The validation process instantiates tasks, which now results in
db creation).