fix up dist

setup.py: fallback to .c if we don't have Cython

build/objs/py -> python

keep .pyx -> .c in python/, separate build/obj/py/py*.o

some kind of lib/pypngtile.so support in Makefile..

update .hgignore

fix debug -> info in main

reformat png_pixel_data to a switch-case

change palette range check to assert

fix make clean to not empty out bin

handle the png_color as a pointer in png_pixel_data

fix prefix for lighttpd..

clean up dev-server stuff, and construct memcache client..

fix up cache key

add .path attr to pypngtile.Image

basic caching behaviour, not use yet

fail main if an image update fails...

refactor main.c into do_tile, add --benchmark, --randomize

void png_pixel_data, slight restructuring

support for profiling - although it's absolutely useless here

fclose out_file

more inlines in pt_png..

change pngtile to accept --out

compile with profiling?

a simple Tornado frontend that uses the werkzeug handlers

split off werkzeug code to separate handlers module..

separate non-wsgi render layer to render.png

document pt_image_tile_* as semi-threadsafe, and nogil pypngtile.pyx (and get rid of trap_err, ugh). Also fix constness warning

fail if DATA_ROOT is missing

rework wsgi.py