Dymo

- Added new world data file with new continent attributes on places
- Removed expired per continent data files
- Updated Makefile to use new data files
- Updated Makefile to use small sample data (San Francisco and Israel) via newer spatial filter on prepare places.
- Updated Makefile to also convert GeoJSON output to SHP files (optional make target)
- Added GeoJSON demo output (San Francisco and Israel)
- Added SHP shapefile demo output (San Francisco and Israel)
- Added Quick Start section to Readme with instructions on `make geojson` and `make shp` targets.

- Added --append flag to dymo-label for appending to output files.

- Modified internal multiprocessing use so that ctrl-C correctly stops dymo-label.

- Fixed handling of dataets that require no annealing.

- Added spatial filtering for multiple bounding boxes in dymp-prepare-places.
- Added wider variety of allowed lat/lon field names for spatial queries.
- Fixed empty file output.

- Added multiprocessing option for dymo-label.
- Added more verbose/quiet command line flags.
- Fixed blobs mode.

2012-09-14: 0.12.0 (after the fact 2012-01-17)
- Added support for arbitrary place label text in --name-field option.
- Added support for arbitrary "zoom start" --zoom-field option.
- Added support for variable townspot symbol point sizes with --symbol-size (universal) and --symbol-size-field (per feature) options.
- Added support to limit results based on --filter-field value match.