-
This is mostly copy/pasting of the relevant code from cachetiles.cpp, but this now actually allows to request on-demand created o5m tiles via mod_tile, assuming the setup this code expects is all there. This did expose a limitation of mod_tile, which assumes file extensions to only contain lower-case letters, and thus chokes on our use of "o5m". This can be worked around though by a simple rewrite rule.
357ad31c