make metaclass private
make metaclass private

dennisobrien/bokeh,rs2/bokeh,dennisobrien/bokeh,ericmjl/bokeh,Karel-van-de-Plassche/bokeh,aavanian/bokeh,rs2/bokeh,ericmjl/bokeh,rs2/bokeh,philippjfr/bokeh,schoolie/bokeh,DuCorey/bokeh,dennisobrien/bokeh,aavanian/bokeh,stonebig/bokeh,aavanian/bokeh,stonebig/bokeh,aavanian/bokeh,philippjfr/bokeh,percyfal/bokeh,percyfal/bokeh,Karel-van-de-Plassche/bokeh,percyfal/bokeh,jakirkham/bokeh,jakirkham/bokeh,ericmjl/bokeh,mindriot101/bokeh,dennisobrien/bokeh,bokeh/bokeh,jakirkham/bokeh,Karel-van-de-Plassche/bokeh,timsnyder/bokeh,schoolie/bokeh,ericmjl/bokeh,philippjfr/bokeh,philippjfr/bokeh,aavanian/bokeh,schoolie/bokeh,mindriot101/bokeh,philippjfr/bokeh,percyfal/bokeh,DuCorey/bokeh,rs2/bokeh,bokeh/bokeh,bokeh/bokeh,timsnyder/bokeh,timsnyder/bokeh,dennisobrien/bokeh,bokeh/bokeh,jakirkham/bokeh,DuCorey/bokeh,ericmjl/bokeh,timsnyder/bokeh,Karel-van-de-Plassche/bokeh,stonebig/bokeh,timsnyder/bokeh,mindriot101/bokeh,DuCorey/bokeh,stonebig/bokeh,mindriot101/bokeh,jakirkham/bokeh,schoolie/bokeh,schoolie/bokeh,DuCorey/bokeh,Karel-van-de-Plassche/bokeh,rs2/bokeh,bokeh/bokeh,percyfal/bokeh