tried to resolve errors in nsdate+helpers, failing thus far. it has something to do with the way i've declared and defined the constants in nsdateconstants
created timeAgo category and added method declarations and definitions
created comparators category on nsdate
created dateComparison category on nsdate. imported nsdate+datecomparison into nsdate+comparators
added methods to comparators category; changed methods in time ago category
fixed date comparison category (put those methods in time from category) and put time from and time from calendar in a group called date comparison
created formatted with style category, declared and defined methods, and placed in formatted dates group
created formatted with format category, defined and declared methods
refactored date editing category -- created date by adding category, declared and defined methods
second part of refactoring date editing category -- created date by subtracting category, declared and defined methods.
created date components with calendar, date components without calendar, component for date (to be imported into the two prior categories), and all methods
no errors except implicit calendar warnings
deleted a lot of files by accident, re-added most but still missing tests. may need to revert to previous version