small bugfix in NodeNode's _getnode()
bug fix in loading the axis text for prismatic/revolute
cut down on printing stuff
deep copy for sidref
newparam fixes for saving
fix newparam saving
add urldecoding for URLs coming out of collada
fix instance_physics_model save and added some recurses
added kinematics and motion <axis_info>, added CommonFloat/CommonInt/CommonBool nodes for resolving parameters
fix articulated_system typos for saving