Initial commit of TileCache into the public eye.
Update copyrights to 2006-2007.e
Occasionally, there are requests to turn a single image into a TileCached 
layer. This is the start of ImageLayer support. Similar to the Image Layer in
OpenLayers, this takes the geographic bounds of an image, and a filename,
and creates a TileCache layer for it.
Adding note to README about non-standard python location.
Always use latest stable version of OpenLayers in distributed index.html.
OL as of 2.3 supports relative URLs.
Patch from Hani Howari to support reading Layer config from tilecache.cfg
for pre-caching.
Change #! line to use 'env python'.
Cache initializers should call their parent.
Add readonly support for Caches. A readonly cache will always hit the backend 
server, not writing new data to the cache.
Add tilecache_clean utility for cleaning out a directory, maintaining a maximum
size.
Add docs to the README on using tilecache_clean.py.
Add support for tilecache_clean to use blocks and blksize on platforms which
support it, so that size on disk as reported by 'du' matches the size requested
when cleaning the cache. (Not tested on Windows yet.) (commit by chris!)
Adjust default tilecache_clean parameters to hopefully not use too much 
memory. Also adjust ordering of heap -- before, results were backwards -- 
and update documentation.
Update changelog to include 1.5.
Add distutils and Debian packaging materials.
Debian configuration fixups.
Some more fixes to Python and Debian packaging files.
Debian package now builds completely.
Incorporate andrew hughes patch for documentation on stdin of Client.py,
and make README be RST so that rst2html doesn't choke.