edx/configuration — pull request #158 by jarv (2013-07-15 22:44:41+00:00)
Title: Fixes bug where WORKERS was sometimes being sent to "NAN"

For the case where "ansible_processor_cores": "NA" and
facter_processorcount wasn't the WORKERS was set to the string "NA" *
the multiplier (like batman).
This will try to convert both to numbers and if the conversion fails it
will fall through and just set the WORKERS to the multiplier.