Nightly builds are currently disabled

I stopped the nightly build that produces the mkgmap snapshots for a while as there are a number of changes being made that are large and not well tested. It has always been the case that the nightly snapshots are almost always perfectly usable and quickly fixed if not. Usually they are better than the version that is marked as "stable". So they are disabled until this is likely to be true again after branches are merged back to the main trunk.

Of course feel free to build from subversion if you want to experiment with the latest and greatest.