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Changes between Version 7 and Version 8 of PRO_CHANGE_PRIMITIVES_R0

v7	v8
17	17	* Change - a simple change.
18	18	* !GroupChange - a composite change that is constructed of simple changes.
19		* !UnmanagedChange - a change that is ~~not supposed to be skipped/unskipped, undone/redone, simply because there is no logical way of doing so or if we decide on changes that will not be managed~~. For example - save a book may be a unmanaged change. If the user creates a frame with a movie content (with a media file of over 700Mb), deletes the frame, deletes the media file and requests a undo - the change may become a unmanaged. If the user had not deleted the media file the change would have been a normal change that can be undone.
	19	* !UnmanagedChange - a change that is supposed to be managed in a special way. Its undo and redo will be implemented as the situation requires. For example - save a book may be a unmanaged change. If the user creates a frame with a movie content (with a media file of over 700Mb), deletes the frame, deletes the media file and requests a undo - the change may become a unmanaged. If the user had not deleted the media file the change would have been a normal change that can be undone.
20	20	* '''Note''' - the primitive operations described above should be possible having in mind these types of changes. Also have in mind that the change types are already implemented in one way or another.
21	21	* A decent documentation should be created that explains the primitives - change types and operations with them.