Merge del stic
Strip pattern to avoid problems with blank characters
Validation on tasks schedule.
Some fixes on import data and fixtures.
Added croniter as cron based scheduler.
Working on machine copy view.
Excluding static files.
Merge remote-tracking branch 'alorenzo/master'
Added 1 min timedelta to start_time for croniter calculation.
Fixed cron syntax  validation, coma separated values now are supported, ranges not suported
Merge remote-tracking branch 'stic/master'
Merge remote-tracking branch 'alorenzo/master'
Addind a default order to some models