ojfoggin/NSCalendar-EqualWithGranularity — pull request #4 by pyro2927 (2013-10-31 00:03:22+00:00)
Title: Let someone be precise with the components they want to compare

This way, if someone wants to compare two dates but ignore the year, they can.

[[NSCalendar currentCalendar] ojf_isDate:date1 equalToDate:date2 withComponents:NSCalendarUnitDay | NSCalendarUnitMonth]

Good for figuring out anniversaries.