Gain some initial separation between ops and their GEOS implementations.
Gain some initial separation between ops and their GEOS implementations.

git-svn-id: 1a8067f95329a7fca9bad502d13a880b95ac544b@1546 b426a367-1105-0410-b9ff-cdf4ab011145

mouadino/Shapely,mindw/shapely,mindw/shapely,jdmcbr/Shapely,abali96/Shapely,mouadino/Shapely,abali96/Shapely,jdmcbr/Shapely