{OBJ} Allow spaces in group names
Merge pull request #55 from asmaloney/OBJ_spaces

{OBJ} Allow spaces in group names
Make sure members are initialized properly
Prefer initialization lists
Assignment operator should not return a const ref
Merge pull request #56 from asmaloney/init_stuff

Make sure members are initialized properly
Remove M3Importer from vc9 solution.
IFC: support reading from IFCZip archives that don't use the same name for the embedded IFC file as the ZIP itself.
Merge branch 'master' of github.com:assimp/assimp into fixes
Exporters: raise errors if output files cannot be opened.
Change spec of obj exporter.
Merge branch 'master' of github.com:assimp/assimp
Forward declare IOSystem in Exporter.hpp
Merge branch 'master' of github.com:assimp/assimp into fixes
add AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION for not transforming position of vertices
Merge pull request #60 from YoheiKakiuchi/master

IGNORE_UP_DIRECTION for not transforming point of vertices
Fixed a bug returning not all material properties when accessing them.

Also fixed another bug occouring when no normals are provided in sample.py (lists do not have a any() method).
Merge pull request #62 from faulesocke/master

Fixed a bug returning not all material properties when accessing them.
Fixed a bug in the bugfix -.-
Merge branch 'master' of github.com:assimp/assimp
Merge pull request #63 from faulesocke/master
Now actually fixed the bug with the normals.

pyassimp returned a list instead of a numpy array when the normals were
empty. This also applies to texture coordinates and other stuff which is
explicitly converted in _finalize_mesh.