Add note contextual menu items in note tool mode. 
Add note contextual menu items in note tool mode. 
WoLpH/skim,ycaihua/skim-app,WoLpH/skim,ycaihua/skim-app,ycaihua/skim-app,WoLpH/skim,ycaihua/skim-app,WoLpH/skim,WoLpH/skim,ycaihua/skim-app