The spawn and location icons should now have the tip of the icon
image point at the actual location. Previously, the icons were
centred onto it, which was slightly off in the vertical direction.
Unfortunately we need to explicitly tell leaflet not to scale them
weirdly but to make them perceptually equivalent to the normal ones,
which means we have hardcoded icon sizes for those two right now.
A common case is a corrupt (or empty) level.dat file. This condition
wasn't properly caught, yielding a less-than-useful stack trace. Even
more concerning is that this could happen when a user is just running
"overviewer.py" to get a world listing.
This has been fixed to improve the user experience
Instead of stuffing specialised values into overviewer.collections,
put a reference to the overviewerConfig tileset entry into the leaflet
layer, so that we can access it from callbacks easily.
Many things do not work at the moment:
* Missing world selector
* Missing overlays (overlay tilesets and markers)
* Missing urlhash code
* Probably other stuff
pngnq-s9 is essentially just a more recently dead version of pngnq,
however, due to not being able to specify multiple binary names in
the past, we've not supported it. Refactor the code to allow specifying
multiple binary names, and add pngnq-s9 to it.
Minecraft now uses minecraft:sign as its id for signs, but also uses
Sign for older versions or chunks that have not yet been updated.
Change the genPOI sign wrangling code and the documentation to reflect
this change.
Fixes#1340.
temp/humnidity was calculated so it matched the pixel at the start of each biome
as shown in the color template (http://minecraft.gamepedia.com/File:Biomes1.7.2.png)
TODO: switch to using coordinates in the image instead of temp/humidity
