update legends.py
update legends.py

I don't think using the actual Enum as is done here for convenience to
display all location is something real users will do in practice.

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