changed to support named cs level in generate_slices_from_name, updated get_current_regulatory_input_names
changed to support named cs level in generate_slices_from_name, updated get_current_regulatory_input_names

Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen