This update for librecad and libdxfrw fixes the following issues:

librecad:
- Update to new upstream release 2.0.9 (boo#962604):
* Mostly a bug fixing release
* Fixed a few crashes due to undo and deleted entities
* More at:
http://forum.librecad.org/2-0-9-released-td5712809.html

libdxfrw was updated to 0.6.3 as a dependency.