Calculating the length of menstrual cycle - closes #1
Calculating ovulation and fertile days - closes #2
Calculation menstruation length - closes #3
Calculating a day of the cycle - closes #4
Change java.sql.Date to joda-time - closes #5
Get cycle length for stored data - closes #6
Change cell background from today - closes #7
Add periodStates to calendar - closes #8
Add ovulation and fertile days to calendar - closes #9
Add month name to main layout - closes #10