Allow plugins return null
Allow plugins return null

gnowxilef/Wox,derekforeman/Wox,Wox-launcher/Wox,kdar/Wox,kayone/Wox,jondaniels/Wox,kdar/Wox,mika76/Wox,18098924759/Wox,kdar/Wox,dstiert/Wox,jondaniels/Wox,medoni/Wox,EmuxEvans/Wox,lances101/Wox,shangvven/Wox,renzhn/Wox,dstiert/Wox,qianlifeng/Wox,sanbinabu/Wox,yozora-hitagi/Saber,renzhn/Wox,danisein/Wox,EmuxEvans/Wox,kayone/Wox,Wox-launcher/Wox,apprentice3d/Wox,vebin/Wox,EmuxEvans/Wox,mika76/Wox,sanbinabu/Wox,zlphoenix/Wox,Megasware128/Wox,shangvven/Wox,mika76/Wox,dstiert/Wox,lances101/Wox,AlexCaranha/Wox,AlexCaranha/Wox,apprentice3d/Wox,shangvven/Wox,Megasware128/Wox,derekforeman/Wox,vebin/Wox,zlphoenix/Wox,danisein/Wox,vebin/Wox,18098924759/Wox,kayone/Wox,yozora-hitagi/Saber,AlexCaranha/Wox,18098924759/Wox,medoni/Wox,qianlifeng/Wox,qianlifeng/Wox,Launchify/Launchify,JohnTheGr8/Wox,JohnTheGr8/Wox,Launchify/Launchify,apprentice3d/Wox,gnowxilef/Wox,sanbinabu/Wox,derekforeman/Wox,gnowxilef/Wox