fixed distributionManagement for maven 3
fixed distributionManagement for maven 3

gouessej/nifty-gui,bgroenks96/nifty-gui,atomixnmc/nifty-gui,mkaring/nifty-gui,Ryszard-Trojnacki/nifty-gui,void256/nifty-gui,xranby/nifty-gui,atomixnmc/nifty-gui,bgroenks96/nifty-gui,Teencrusher/nifty-gui,relu91/nifty-gui,void256/nifty-gui,Ryszard-Trojnacki/nifty-gui,Teencrusher/nifty-gui