Change version to 2.3.1.
Change version to 2.3.1.

jorik041/dockpanelsuite,angelapper/dockpanelsuite,RadarNyan/dockpanelsuite,elnomade/dockpanelsuite,15070217668/dockpanelsuite,joelbyren/dockpanelsuite,15070217668/dockpanelsuite,rohitlodha/dockpanelsuite,shintadono/dockpanelsuite,transistor1/dockpanelsuite,Romout/dockpanelsuite,xo-energy/dockpanelsuite,dockpanelsuite/dockpanelsuite,ArsenShnurkov/dockpanelsuite,modulexcite/O2_Fork_dockpanelsuite,compborg/dockpanelsuite,thijse/dockpanelsuite