Fix up data2map.
Swap X and Y vis axes.
Reduce by, not reduce to, reduce_factor.
Swap X and Y in data2map.
Update data2map.m to output maps with proper scale and indicate in map file.
Remove costmap from make target list.
Get map size from map file.
Update loop termination condition.
Remove debug print.
Fix bad math.
Fix visualization X/Y flip-flop for good.
Move tools to tools directory.
Really figure out X/Y flip-floppity this time.
Move some more tools over.
Update data files.
Update readme.
Add multicreatemap.
Add haversine function to tools so I can use Octave.
Add gitignore.