Fix for listeners in physics_interaction.js and attempts by a mesh node to reference non-existent mesh data will now throw an exception that's more descriptive than "Cannot read property data of null"
Fix for listeners in physics_interaction.js and attempts by a mesh
node to reference non-existent mesh data will now throw an exception
that's more descriptive than "Cannot read property data of null"

CCLDESTY/xml3d.js,ariyapour/xml3d.js,Fiware/webui.Xml3d.js,xml3d/xml3d.js,CCLDESTY/xml3d.js,ariyapour/xml3d.js,xml3d/xml3d.js,Fiware/webui.Xml3d.js