replaced category_schema by data_tree_schema
replaced category_schema by data_tree_schema

MichelJuillard/dlstats,MichelJuillard/dlstats,MichelJuillard/dlstats,mmalter/dlstats,Widukind/dlstats,mmalter/dlstats,Widukind/dlstats,mmalter/dlstats