use LineCollection to draw dendrogram. Should be faster
use LineCollection to draw dendrogram. Should be faster

phobson/seaborn,tim777z/seaborn,arokem/seaborn,phobson/seaborn,lukauskas/seaborn,ashhher3/seaborn,clarkfitzg/seaborn,JWarmenhoven/seaborn,lukauskas/seaborn,huongttlan/seaborn,anntzer/seaborn,mwaskom/seaborn,oesteban/seaborn,petebachant/seaborn,q1ang/seaborn,dimarkov/seaborn,lypzln/seaborn,anntzer/seaborn,drewokane/seaborn,arokem/seaborn,mia1rab/seaborn,bsipocz/seaborn,mwaskom/seaborn,jat255/seaborn,gef756/seaborn,muku42/seaborn,sauliusl/seaborn,olgabot/seaborn