Check if a cron job is already running before restarting
Continue on to next cron job instead of hard exit
Adding configurable setting to lock jobs and prevent re-execution of running command. Defaults to False to preserve the behaviour in the older versions of the module
Forgot to import the new config setting
Catching and logging exceptions from cron jobs
Revert "Catching and logging exceptions from cron jobs"

This reverts commit 4a436d695e2c4503910d1b1a5859917c93ee9c34.
Merge pull request #6 from arski/master

Check if a cron job is running before starting