change absurd with closed
DIMENSION: added dxf_dimension_write().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
3DFACE: correction in a comment.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
DIMENSION: added dxf_dimension_read().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
ELLIPSE: use the acad_version_number from the DxfFile struct.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
INSERT: use the acad_version_number from the DxfFile struct.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
INSERT: added dxf_insert_free().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
INSERT: corrections in reading and writing subclass markers.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
INSERT: correction of a acad_version_number.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
Merge branch 'master' of git://github.com/paolo-caroni/libdxf into 'origin/master'.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
LAYER: do not include global.h twice.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
LAYER: added dxf_layer_new().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
DIMENSION: correction of a typo in the doxygen file header.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
LAYER: added dxf_layer_init().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
LAYER: added dxf_layer_free().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
ARC: correction of a acad_version_number.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
Added header R10 and R12
Common objects group codes
Correction
LAYER: added dxf_layer_read().

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>