[Jigs-devel] major changes

[Brendan M. <hb...@an...>]

Just committed the core changes I've been working on.  They improve the
ImageSource and ImageType concepts, this should make a lot of the other
changes we want much cleaner.  It will also make running Desque backed by
the root_image_source a reasonable thing to do, based on the new
HashedDirImageSource for storing resized images.

I've tested the changes for Jigs systems both with and without a
root_image_source using the Jigs.java frontend (which perhaps needs to be
renamed) and also Desque.  These are working for me, but because of the
extent of the changes, some bugs are probably still lurking.  Help in
testing is appreciated.  Also, I had to handle some conflicts in
Desque.java  and AlbumModel.java, which I think I did correctly, but you
might want to make sure.  I don't quite understand how Desque works with
it's tree, so I'm not positive that the correct AlbumHierarchy is always
pointed to, but again it seems to be working.

	- Brendan