Fix that a bar chart with one "item" does not show a label
Fix that a bar chart with one "item" does not show a label

aiguofer/bokeh,KasperPRasmussen/bokeh,draperjames/bokeh,Karel-van-de-Plassche/bokeh,bokeh/bokeh,aiguofer/bokeh,dennisobrien/bokeh,philippjfr/bokeh,azjps/bokeh,DuCorey/bokeh,bokeh/bokeh,phobson/bokeh,jakirkham/bokeh,DuCorey/bokeh,phobson/bokeh,timsnyder/bokeh,bokeh/bokeh,Karel-van-de-Plassche/bokeh,philippjfr/bokeh,jakirkham/bokeh,ptitjano/bokeh,stonebig/bokeh,dennisobrien/bokeh,azjps/bokeh,schoolie/bokeh,aavanian/bokeh,schoolie/bokeh,percyfal/bokeh,clairetang6/bokeh,aavanian/bokeh,rs2/bokeh,justacec/bokeh,phobson/bokeh,azjps/bokeh,aavanian/bokeh,dennisobrien/bokeh,justacec/bokeh,dennisobrien/bokeh,bokeh/bokeh,dennisobrien/bokeh,quasiben/bokeh,ericmjl/bokeh,mindriot101/bokeh,rs2/bokeh,timsnyder/bokeh,ericmjl/bokeh,rs2/bokeh,stonebig/bokeh,ptitjano/bokeh,KasperPRasmussen/bokeh,Karel-van-de-Plassche/bokeh,clairetang6/bokeh,jakirkham/bokeh,draperjames/bokeh,ericmjl/bokeh,aiguofer/bokeh,aavanian/bokeh,KasperPRasmussen/bokeh,quasiben/bokeh,ptitjano/bokeh,ericmjl/bokeh,mindriot101/bokeh,KasperPRasmussen/bokeh,justacec/bokeh,aiguofer/bokeh,clairetang6/bokeh,mindriot101/bokeh,aiguofer/bokeh,schoolie/bokeh,ericmjl/bokeh,draperjames/bokeh,phobson/bokeh,rs2/bokeh,bokeh/bokeh,timsnyder/bokeh,azjps/bokeh,draperjames/bokeh,timsnyder/bokeh,phobson/bokeh,rs2/bokeh,KasperPRasmussen/bokeh,percyfal/bokeh,DuCorey/bokeh,DuCorey/bokeh,justacec/bokeh,stonebig/bokeh,ptitjano/bokeh,mindriot101/bokeh,philippjfr/bokeh,philippjfr/bokeh,timsnyder/bokeh,schoolie/bokeh,jakirkham/bokeh,stonebig/bokeh,draperjames/bokeh,azjps/bokeh,percyfal/bokeh,DuCorey/bokeh,percyfal/bokeh,clairetang6/bokeh,Karel-van-de-Plassche/bokeh,ptitjano/bokeh,percyfal/bokeh,jakirkham/bokeh,schoolie/bokeh,aavanian/bokeh,quasiben/bokeh,philippjfr/bokeh,Karel-van-de-Plassche/bokeh