fixes on kobo xslform publish step
fixes on kobo xslform publish step

* prefixing certain xml names with _
* autonaming before parsing rank and scoring qtypes

kobotoolbox/dkobo,onaio/dkobo,kobotoolbox/dkobo,jomolinare/dkobo,onaio/dkobo,kobotoolbox/dkobo,mainakibui/dkobo,kobotoolbox/dkobo,mainakibui/dkobo,mainakibui/dkobo,onaio/dkobo,jomolinare/dkobo,mainakibui/dkobo,onaio/dkobo,jomolinare/dkobo,jomolinare/dkobo