- Expand the five schedule fields once while loading a task, so that matching a schedule can no longer fail at runtime. - Fix a single malformed schedule killing the scheduler thread, which silently stopped every scheduled task until the next restart. - Support ranges with a step like `1-23/2`, which raised an error before. - Support english month and weekday names like `jan`, `january`, `mon` or `mon-fri`. - Accept numbers with a leading zero like `01`. - Log unusable schedule elements as a warning instead of ignoring them silently. - Document the two places where suvi deviates from vixie cron, namely `*/n` steps in the day, month and weekday field and a schedule that restricts the day of month and the weekday at once. Existing schedules keep firing unchanged.