Assets structures

class Collection:
	#Not for metadata - for personal use.
	

class Photo:
	photographer
	caption #default caption (location and people in picture?) and different depending on where it's being displayed
	location
	date taken
	date added to system
	usage limitations (series and text "other" field)
	people in photos
	event on the events calendar
	tags # curated set
	notes
	tags # noncurated
	source # digital/negative/photo
	related resources # generic relationship


class photo relation to something:
	caption
	extra cropping information


class Photographer:
	name
	attribution (default= Photo by (name))
	attribution notes


#usage limitations:
#	print only
#	contract expires (date after which it can't be used.)
#	size/resolution limitation on the web.
#	etc.


#-- private collections?