add git ignore

Conflicts:
	.gitignore
modified .gitignore

.. to exclude .xml and .blend? files
fixed problem in updateKinematics

Now iterates over the names of children instead of over the children
themselves

Conflicts:
	armatures.py
	mmm.py
Fixed bug in pose updates

Conflicts:
	armatures.py
	mmm.py
Removed Debug output

Conflicts:
	armatures.py
Corrected axis input

Conflicts:
	files.py
	mmm.py
Fixed bug in COLLADA export

the modification of RobotEditor.getTransform() resulted in a tuple of
returned matrices while a single matrix was expected. The modification
was necessary to decompose the transformation from parent into 1) the
kinematic structure and 2) the joint configuration.
Right now, the 2.) is not exported to collada.

Conflicts:
	simox.py
Added Constraints

Conflicts:
	armatures.py
Refined the constraints

Conflicts:
	armatures.py
Updated COLLADA export

now exports the offset values too
Again fix for collada export
bugfix

Conflicts:
	armatures.py
Fixed the collada export again
Fix to COLLADA-Export

Now the Markers use the same transformations as that used for the models
Reverted fix.py

Reason: Initial version was correct (see comments in file).
Right now, the model has to be in a rest position for export. the
Transformation of the joint itself is not exported into the scene graph
Improved rigid_body_dynamics export
gitignores
Many smaller changes

Export fixed for collision models.
Markers were not correctly exported unless the robot was in rest
position (even then there were problems). This could be solved using
the PoseBone elements of the armature, which have the required matrix
available. This could be of interest for exporting the visual scene
when the rest position is left.
Collision meshes were also added.
Fixed erroneous debug output