gant.js: use min date as left bound
gant.js: use min date as left bound

tlevine/rhizi,cben/rhizi,shlomif/rhizi,Rhizi/rhizi,cben/rhizi,ozFri/rhizi,yuvadm/rhizi,shlomif/rhizi,shlomif/rhizi,cben/rhizi,tlevine/rhizi,shlomif/rhizi,Rhizi/rhizi,Rhizi/rhizi,ozFri/rhizi,tlevine/rhizi,yuvadm/rhizi,cben/rhizi,yuvadm/rhizi,yuvadm/rhizi,tlevine/rhizi,ozFri/rhizi,ozFri/rhizi,Rhizi/rhizi