Renamed.
Renamed from GModelSpatialPtsrc.i to GModelSpatialPointSource.i
Renamed from GModelSpatialPtsrc.cpp to GModelSpatialPointSource.cpp
Remove unnecessary include file.
Replace GModelSpatialPtsrc by GModelSpatialPointSource.
Remove GModelExtendedSource and GModelDiffuseSource includes.
Replace GModelSpatialPtsrc by GModelSpatialPointSource.
Remove unnecessary include file.
Replace GModelSpatialPtsrc by GModelSpatialPointSource.
Rename GModelSpatialPtsrc to GModelSpatialPointSource
Renamed from GModelRadial.hpp to GModelSpatialRadial.hpp.
Renamed from GModelRadial.i to GModelSpatialRadial.i.
Renamed from GModelRadial.cpp to GModelSpatialRadial.cpp.
Replace GModelRadial by GModelSpatialRadial.
Replace GModelRadial by GModelSpatialRadial and remove eval methods from extension.

The eval methods have been added some time ago to the extensions since the interface was not built correctly by swig. I'm not sure whether this is still the case, normally these methods are not needed. I thus removed the methods for the moment.
Replace GModelRadial by GModelSpatialRadial.
Rename GModelRadial to GModelSpatialRadial.
Renamed from GModelRadialDisk to GModelSpatialRadialDisk.
Renamed from GModelRadialGauss to GModelSpatialRadialGauss.
Renamed from GModelRadialShell.hpp to GModelSpatialRadialShell.hpp.