Added a class to represent a Jewish Holiday.
Merge branch 'master' of https://github.com/MosheBerman/KosherCocoa

Conflicts:
	KosherCocoa.xcodeproj/project.pbxproj
	KosherCocoa/Library/Core/Calendar/Chagim/KCJewishHoliday.h
	KosherCocoa/Library/Core/Calendar/Chagim/KCJewishHoliday.m