a message being composed. When finished, it will be submitted via a Celeste.

	initialization
	celeste:initialText:

	interface
	addAttachment open openInMVC openInMorphic

	private
	breakLines:atWidth: breakLinesInMessage:

	access	top
	messageText return the current text
	messageText: change the current text
	submit submit the message

	initialization	top
	celeste:initialText:

	interface	top
	addAttachment
	open open an interface
	openInMVC
	openInMorphic open an interface for sending a mail message with the given initial text

	private	top
	breakLines:atWidth: break lines in the given string into shorter lines
	breakLinesInMessage: reformat long lines in the specified message into shorter ones

	instance creation	top
	celeste:initialText: create an instance for the given mail reader, editting the given text
	openForCeleste:initialText: open a composition window for the given mail reader, editting the given text