Fix label position for offline nodes
Fix label position for offline nodes

   - also fixed little bug with wrong position "remove botton"
   - and padding inside .node-labels-popover

Closes-Bug: #1476628

Change-Id: I7886040158edbf6f9d060c88a475e7beb2d449f5

stackforge/fuel-web,huntxu/fuel-web,stackforge/fuel-web,eayunstack/fuel-web,SmartInfrastructures/fuel-web-dev,SmartInfrastructures/fuel-web-dev,stackforge/fuel-web,huntxu/fuel-web,huntxu/fuel-web,huntxu/fuel-web,eayunstack/fuel-web,eayunstack/fuel-web,eayunstack/fuel-web,SmartInfrastructures/fuel-web-dev,SmartInfrastructures/fuel-web-dev,eayunstack/fuel-web,huntxu/fuel-web,SmartInfrastructures/fuel-web-dev