LIBKML: transform multigeometry with one single component into single geometry; emit a warning when an empty multigeometry is written (ATC 66)

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@26952 f0d54148-0727-0410-94bb-9a71ac55c965
Ili: Writing Ili1/2 files with Ilismeta models

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@26953 f0d54148-0727-0410-94bb-9a71ac55c965