deleted outdated web files
update slippy map to current version on server
add possibility to browse meta informations of tiles: date, logfiles, raw data, request updates,...
add code for requesting tile's image data
add code to generate an on-the-fly overlay for the image timestamps
add support to split all of germany, austria and switzerland, move to new download server of geofabrik
pick a random tile to (re)render so we don't need to sync between renderers
switch to a png based packed file format
fix rotation for outer zoom levels
update informations on how to usw the code