added build tasks "update-git-submodules" to fetch latest versions of sever-control-panel and webinterface
added build tasks "update-git-submodules" to fetch latest versions of sever-control-panel and webinterface

Akhiljs/WPN-XM,iCasa/WPN-XM,Akhiljs/WPN-XM,gencer/WPN-XM,WPN-XM/WPN-XM,iamelectron/WPN-XM,iamelectron/WPN-XM,iCasa/WPN-XM,iCasa/WPN-XM,WPN-XM/WPN-XM,Akhiljs/WPN-XM,gencer/WPN-XM,gencer/WPN-XM,gencer/WPN-XM,iCasa/WPN-XM,Akhiljs/WPN-XM,Akhiljs/WPN-XM,gencer/WPN-XM,gencer/WPN-XM,Akhiljs/WPN-XM,WPN-XM/WPN-XM,iamelectron/WPN-XM,iamelectron/WPN-XM,iamelectron/WPN-XM,iCasa/WPN-XM,iCasa/WPN-XM,WPN-XM/WPN-XM,iamelectron/WPN-XM,WPN-XM/WPN-XM,WPN-XM/WPN-XM