version bumping for 0.5
reformat defs
add smurf importer skeleton
format and clean robotdictionary
started refactoring sensor creation
renaming MARS -> Phobos in some variables
change assignment and creation of materials
fixed sensor editing, implemented nice rays
formatting in materials
fix problem with header
get rid of custom props before writing standard dict
fix rotation of sensors
clean exporter
finish smurf export
fix unclosed tag in srdf export
rename function variable mother->parent
reformatted and cleaned exporter