Display Bboxes

Quickly Display Bounding Boxes for Mbtiles

1. Place the regional.mbtiles files in a direcetory, and copy the mbdir2bbox.py program into the same directory.
2. Run it "./mbdir2bbox.py"
3. This will create an ./output/ directory and write a file named bboxes.geojson to it.
4. Move the bboxes.geojson in /library/www/osm-vector-maps/viewer/assets/ to bboxes.geojson.orig
5. Copy the new file (./output/bboxes.geojson) to the assets directory.
6. Edit the /library/www/osm-vector-maps/viewer/viewer-bundle.js by placing a line "found = true;" at Line 449.