Return more useful stage & step data
Return more useful stage & step data

Completely re-factor sanitize_step so that it returns something much closer
to the original step definition, rather than the internal representation with
all of it's metadata & wrappers.
Remove 'id' fields in santize_stage.
Fixes issue #54

Liqwyd/Cyclid,Cyclid/Cyclid,Liqwyd/Cyclid,Cyclid/Cyclid