This version introduces a new custom django field for use of cron strings in django models.
Cronfield introduces an new parameter named daily_limit which can be used to limit daily frequency of the given cron string.
The Django Fancy Cronfield supports python 2.6, 2.7, 3.3 and 3.4.
The Django Fancy Cronfield supports django 1.5, 1.6, 1.7 and 1.8.