So, something that bugs me about TileCache is that it's got all the
layer classes in one file, rather than being something that's easy to
'drop in' a single Python file into a directory to add a new layer
I think I have the tools to fix this now -- I've done some work on this
method of operation for another project -- and I think that I'd like to
go ahead and perform this refactoring.
I'll probably do it in a branch, and then share the results and the
changes that it means on the configuration side.
If I make this refactoring, it would probably lead to a TileCache 2.0 --
same features, but post-refactoring.
This is just a heads up that this may be something I do some hacking on,
so if you have outstanding TileCache patches, you should get them in now