Toblerity/Shapely — pull request #18 by WeatherGod (2012-08-02 03:52:45+00:00)
Title: Added unary_union() function.

This is the start of the branch that would bring unary_union to Shapely. Some outstanding tasks:
* Determine the minimum version number for geos_c when GEOSUnaryUnion was introduced. All I know is that it was introducted for GEOS 3.3.0, but I don't know the geos_c version number that corresponds to that release.
* Update docs and examples and tests
* Discuss deprecation policy for cascaded_union(). A decision here would guide some of the changes to the documentation.