* allow "@" and ":" in paths; spotted by freezr
* URL-encode the file names in the directory index; reported by cage
* improvements to the mime handling: fixed a memory leak and improve
lookup speed.
* log (with low priority) when gmid failed to open a file because of
its permissions.
* include a trailing "/" for dirs in the auto-generated directory index.
* deprecated the `map' rule in favour of the new `types' block.
* the default list is not loaded anymore when `types' is used; except for
the text/gemini to ".gmi"/".gemini" mappings.