Fixes #88 so that group stiffness (group constraint weight) can be configured per group
Fixes #88 so that group stiffness (group constraint weight) can be configured per group

repos-viz/WebCola,kevinmcalear/WebCola,gordonwoodhull/WebCola,mathn/WebCola,gordonwoodhull/WebCola,nchen63/WebCola,kevinmcalear/WebCola,shusenl/WebCola,davkal/WebCola,cpsloal/WebCola,maxint137/WebCola,timelyportfolio/WebCola,gordonwoodhull/WebCola,tgdwyer/WebCola,maxint137/WebCola,gdseller/WebCola,mathn/WebCola,repos-viz/WebCola,maxint137/WebCola,timelyportfolio/WebCola,shusenl/WebCola,shusenl/WebCola,cpsloal/WebCola,mathn/WebCola,gdseller/WebCola,nchen63/WebCola,davkal/WebCola,nchen63/WebCola,tgdwyer/WebCola,cpsloal/WebCola,davkal/WebCola,timelyportfolio/WebCola,repos-viz/WebCola,timelyportfolio/WebCola,tgdwyer/WebCola,kevinmcalear/WebCola,gdseller/WebCola