add new legend sorting attributes to builder and deprecate legend_sort
add new legend sorting attributes to builder and deprecate legend_sort

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