Fixed #256.
Fixed #256.

Conflicts:
	WinFormsUI/Docking/VS2012LightDockPaneStrip.cs

jorik041/dockpanelsuite,ArsenShnurkov/dockpanelsuite,RadarNyan/dockpanelsuite,dockpanelsuite/dockpanelsuite,rohitlodha/dockpanelsuite,15070217668/dockpanelsuite,compborg/dockpanelsuite,shintadono/dockpanelsuite,angelapper/dockpanelsuite,thijse/dockpanelsuite,elnomade/dockpanelsuite,xo-energy/dockpanelsuite,Romout/dockpanelsuite,joelbyren/dockpanelsuite,transistor1/dockpanelsuite,15070217668/dockpanelsuite