No more use of deprecated has_key for dicts
No more use of deprecated has_key for dicts

rdhyee/PyTables,jennolsen84/PyTables,cpcloud/PyTables,joonro/PyTables,jennolsen84/PyTables,rabernat/PyTables,jack-pappas/PyTables,rdhyee/PyTables,dotsdl/PyTables,rabernat/PyTables,mohamed-ali/PyTables,jennolsen84/PyTables,andreabedini/PyTables,FrancescAlted/PyTables,rdhyee/PyTables,tp199911/PyTables,jack-pappas/PyTables,avalentino/PyTables,gdementen/PyTables,rabernat/PyTables,jack-pappas/PyTables,dotsdl/PyTables,jack-pappas/PyTables,mohamed-ali/PyTables,mohamed-ali/PyTables,PyTables/PyTables,gdementen/PyTables,joonro/PyTables,cpcloud/PyTables,rabernat/PyTables,gdementen/PyTables,avalentino/PyTables,andreabedini/PyTables,andreabedini/PyTables,andreabedini/PyTables,rdhyee/PyTables,jennolsen84/PyTables,FrancescAlted/PyTables,dotsdl/PyTables,tp199911/PyTables,cpcloud/PyTables,PyTables/PyTables,FrancescAlted/PyTables,joonro/PyTables,jack-pappas/PyTables,avalentino/PyTables,cpcloud/PyTables,dotsdl/PyTables,PyTables/PyTables,gdementen/PyTables,joonro/PyTables,mohamed-ali/PyTables,tp199911/PyTables,tp199911/PyTables