libs/core: fix nil access, implement luci.model.network.network.uptime()
libs/core: fix nil access, implement luci.model.network.network.uptime()


nwf/openwrt-luci,forward619/luci,dwmw2/luci,jorgifumi/luci,shangjiyu/luci-with-extra,ff94315/luci-1,bittorf/luci,nmav/luci,ReclaimYourPrivacy/cloak-luci,981213/luci-1,harveyhu2012/luci,sujeet14108/luci,tobiaswaldvogel/luci,palmettos/test,Hostle/luci,lbthomsen/openwrt-luci,dwmw2/luci,cappiewu/luci,opentechinstitute/luci,remakeelectric/luci,LuttyYang/luci,fkooman/luci,aa65535/luci,cappiewu/luci,jlopenwrtluci/luci,opentechinstitute/luci,aa65535/luci,cshore-firmware/openwrt-luci,cshore-firmware/openwrt-luci,wongsyrone/luci-1,dwmw2/luci,taiha/luci,teslamint/luci,male-puppies/luci,taiha/luci,kuoruan/lede-luci,RedSnake64/openwrt-luci-packages,maxrio/luci981213,cappiewu/luci,oneru/luci,joaofvieira/luci,taiha/luci,mumuqz/luci,chris5560/openwrt-luci,Noltari/luci,palmettos/test,marcel-sch/luci,dismantl/luci-0.12,tcatm/luci,openwrt-es/openwrt-luci,aa65535/luci,NeoRaider/luci,Sakura-Winkey/LuCI,cshore-firmware/openwrt-luci,teslamint/luci,Hostle/luci,palmettos/cnLuCI,forward619/luci,bright-things/ionic-luci,lcf258/openwrtcn,forward619/luci,jlopenwrtluci/luci,ff94315/luci-1,bright-things/ionic-luci,Hostle/openwrt-luci-multi-user,palmettos/cnLuCI,schidler/ionic-luci,thess/OpenWrt-luci,slayerrensky/luci,bittorf/luci,david-xiao/luci,bittorf/luci,shangjiyu/luci-with-extra,jchuang1977/luci-1,bright-things/ionic-luci,taiha/luci,thesabbir/luci,nmav/luci,forward619/luci,LuttyYang/luci,981213/luci-1,LazyZhu/openwrt-luci-trunk-mod,joaofvieira/luci,MinFu/luci,fkooman/luci,maxrio/luci981213,keyidadi/luci,ReclaimYourPrivacy/cloak-luci,thesabbir/luci,bright-things/ionic-luci,RedSnake64/openwrt-luci-packages,jlopenwrtluci/luci,thesabbir/luci,MinFu/luci,tcatm/luci,cshore/luci,oneru/luci,opentechinstitute/luci,maxrio/luci981213,palmettos/test,urueedi/luci,RuiChen1113/luci,ReclaimYourPrivacy/cloak-luci,deepak78/new-luci,tcatm/luci,Hostle/luci,ollie27/openwrt_luci,ReclaimYourPrivacy/cloak-luci,slayerrensky/luci,maxrio/luci981213,thess/OpenWrt-luci,openwrt/luci,fkooman/luci,kuoruan/luci,NeoRaider/luci,teslamint/luci,schidler/ionic-luci,artynet/luci,forward619/luci,nmav/luci,cshore/luci,Sakura-Winkey/LuCI,daofeng2015/luci,Hostle/luci,dwmw2/luci,fkooman/luci,daofeng2015/luci,schidler/ionic-luci,chris5560/openwrt-luci,oneru/luci,oyido/luci,kuoruan/lede-luci,nmav/luci,LuttyYang/luci,cappiewu/luci,harveyhu2012/luci,Wedmer/luci,artynet/luci,sujeet14108/luci,LazyZhu/openwrt-luci-trunk-mod,mumuqz/luci,bright-things/ionic-luci,keyidadi/luci,Kyklas/luci-proto-hso,oneru/luci,kuoruan/luci,obsy/luci,obsy/luci,cappiewu/luci,kuoruan/luci,NeoRaider/luci,palmettos/test,obsy/luci,cshore/luci,jlopenwrtluci/luci,lcf258/openwrtcn,lbthomsen/openwrt-luci,harveyhu2012/luci,aa65535/luci,taiha/luci,LazyZhu/openwrt-luci-trunk-mod,florian-shellfire/luci,cshore/luci,981213/luci-1,RedSnake64/openwrt-luci-packages,Noltari/luci,MinFu/luci,rogerpueyo/luci,thesabbir/luci,slayerrensky/luci,Wedmer/luci,aa65535/luci,lbthomsen/openwrt-luci,maxrio/luci981213,thesabbir/luci,wongsyrone/luci-1,dwmw2/luci,kuoruan/lede-luci,LazyZhu/openwrt-luci-trunk-mod,cappiewu/luci,MinFu/luci,palmettos/test,tobiaswaldvogel/luci,tobiaswaldvogel/luci,joaofvieira/luci,opentechinstitute/luci,teslamint/luci,aa65535/luci,RuiChen1113/luci,deepak78/new-luci,tobiaswaldvogel/luci,daofeng2015/luci,wongsyrone/luci-1,lcf258/openwrtcn,Hostle/openwrt-luci-multi-user,LuttyYang/luci,oyido/luci,nwf/openwrt-luci,kuoruan/lede-luci,MinFu/luci,harveyhu2012/luci,remakeelectric/luci,zhaoxx063/luci,MinFu/luci,fkooman/luci,Wedmer/luci,Hostle/luci,jchuang1977/luci-1,maxrio/luci981213,urueedi/luci,981213/luci-1,lcf258/openwrtcn,bittorf/luci,joaofvieira/luci,oyido/luci,artynet/luci,tcatm/luci,jchuang1977/luci-1,RedSnake64/openwrt-luci-packages,thess/OpenWrt-luci,jorgifumi/luci,db260179/openwrt-bpi-r1-luci,hnyman/luci,sujeet14108/luci,kuoruan/luci,dismantl/luci-0.12,thesabbir/luci,oyido/luci,zhaoxx063/luci,Noltari/luci,rogerpueyo/luci,981213/luci-1,sujeet14108/luci,aa65535/luci,tcatm/luci,jorgifumi/luci,oyido/luci,Hostle/luci,daofeng2015/luci,mumuqz/luci,db260179/openwrt-bpi-r1-luci,palmettos/cnLuCI,david-xiao/luci,fkooman/luci,RuiChen1113/luci,Kyklas/luci-proto-hso,chris5560/openwrt-luci,zhaoxx063/luci,nmav/luci,shangjiyu/luci-with-extra,thess/OpenWrt-luci,marcel-sch/luci,teslamint/luci,kuoruan/luci,harveyhu2012/luci,oneru/luci,kuoruan/lede-luci,openwrt/luci,openwrt-es/openwrt-luci,MinFu/luci,bittorf/luci,rogerpueyo/luci,openwrt/luci,nwf/openwrt-luci,david-xiao/luci,db260179/openwrt-bpi-r1-luci,hnyman/luci,rogerpueyo/luci,cshore/luci,Kyklas/luci-proto-hso,palmettos/cnLuCI,kuoruan/luci,urueedi/luci,oyido/luci,bittorf/luci,tcatm/luci,hnyman/luci,marcel-sch/luci,deepak78/new-luci,tcatm/luci,kuoruan/luci,Hostle/luci,obsy/luci,hnyman/luci,Wedmer/luci,jorgifumi/luci,ff94315/luci-1,bittorf/luci,jorgifumi/luci,LazyZhu/openwrt-luci-trunk-mod,palmettos/cnLuCI,lbthomsen/openwrt-luci,deepak78/new-luci,remakeelectric/luci,wongsyrone/luci-1,marcel-sch/luci,palmettos/test,openwrt-es/openwrt-luci,Hostle/openwrt-luci-multi-user,db260179/openwrt-bpi-r1-luci,male-puppies/luci,nmav/luci,981213/luci-1,keyidadi/luci,forward619/luci,marcel-sch/luci,Noltari/luci,chris5560/openwrt-luci,openwrt/luci,obsy/luci,palmettos/cnLuCI,bittorf/luci,artynet/luci,openwrt-es/openwrt-luci,NeoRaider/luci,tobiaswaldvogel/luci,chris5560/openwrt-luci,joaofvieira/luci,deepak78/new-luci,jlopenwrtluci/luci,wongsyrone/luci-1,artynet/luci,dwmw2/luci,maxrio/luci981213,aircross/OpenWrt-Firefly-LuCI,RedSnake64/openwrt-luci-packages,ff94315/luci-1,mumuqz/luci,male-puppies/luci,Hostle/openwrt-luci-multi-user,marcel-sch/luci,taiha/luci,wongsyrone/luci-1,Wedmer/luci,slayerrensky/luci,cappiewu/luci,artynet/luci,fkooman/luci,Wedmer/luci,schidler/ionic-luci,ReclaimYourPrivacy/cloak-luci,joaofvieira/luci,opentechinstitute/luci,deepak78/new-luci,Hostle/openwrt-luci-multi-user,nwf/openwrt-luci,daofeng2015/luci,slayerrensky/luci,sujeet14108/luci,jlopenwrtluci/luci,ollie27/openwrt_luci,Noltari/luci,palmettos/test,remakeelectric/luci,cshore-firmware/openwrt-luci,oneru/luci,deepak78/new-luci,forward619/luci,florian-shellfire/luci,Wedmer/luci,Kyklas/luci-proto-hso,RuiChen1113/luci,oneru/luci,remakeelectric/luci,ollie27/openwrt_luci,hnyman/luci,mumuqz/luci,ReclaimYourPrivacy/cloak-luci,hnyman/luci,Sakura-Winkey/LuCI,nwf/openwrt-luci,dismantl/luci-0.12,dwmw2/luci,shangjiyu/luci-with-extra,male-puppies/luci,jchuang1977/luci-1,kuoruan/lede-luci,hnyman/luci,hnyman/luci,tobiaswaldvogel/luci,RedSnake64/openwrt-luci-packages,zhaoxx063/luci,obsy/luci,NeoRaider/luci,schidler/ionic-luci,chris5560/openwrt-luci,urueedi/luci,aa65535/luci,Noltari/luci,nmav/luci,cshore-firmware/openwrt-luci,openwrt-es/openwrt-luci,thess/OpenWrt-luci,urueedi/luci,marcel-sch/luci,dismantl/luci-0.12,sujeet14108/luci,mumuqz/luci,kuoruan/luci,Noltari/luci,db260179/openwrt-bpi-r1-luci,male-puppies/luci,zhaoxx063/luci,cshore/luci,mumuqz/luci,lcf258/openwrtcn,jlopenwrtluci/luci,Sakura-Winkey/LuCI,ollie27/openwrt_luci,lbthomsen/openwrt-luci,aircross/OpenWrt-Firefly-LuCI,mumuqz/luci,shangjiyu/luci-with-extra,openwrt-es/openwrt-luci,palmettos/test,RedSnake64/openwrt-luci-packages,tobiaswaldvogel/luci,chris5560/openwrt-luci,oneru/luci,cshore-firmware/openwrt-luci,jorgifumi/luci,keyidadi/luci,opentechinstitute/luci,Sakura-Winkey/LuCI,openwrt-es/openwrt-luci,rogerpueyo/luci,lcf258/openwrtcn,aircross/OpenWrt-Firefly-LuCI,david-xiao/luci,artynet/luci,jchuang1977/luci-1,LuttyYang/luci,NeoRaider/luci,bright-things/ionic-luci,thesabbir/luci,jchuang1977/luci-1,tobiaswaldvogel/luci,openwrt/luci,taiha/luci,marcel-sch/luci,zhaoxx063/luci,keyidadi/luci,wongsyrone/luci-1,LuttyYang/luci,kuoruan/lede-luci,ff94315/luci-1,urueedi/luci,david-xiao/luci,opentechinstitute/luci,obsy/luci,sujeet14108/luci,shangjiyu/luci-with-extra,thess/OpenWrt-luci,NeoRaider/luci,thesabbir/luci,RuiChen1113/luci,Kyklas/luci-proto-hso,remakeelectric/luci,LazyZhu/openwrt-luci-trunk-mod,Sakura-Winkey/LuCI,aircross/OpenWrt-Firefly-LuCI,oyido/luci,bright-things/ionic-luci,david-xiao/luci,Kyklas/luci-proto-hso,teslamint/luci,openwrt/luci,keyidadi/luci,zhaoxx063/luci,palmettos/cnLuCI,ollie27/openwrt_luci,florian-shellfire/luci,Hostle/luci,jchuang1977/luci-1,lbthomsen/openwrt-luci,daofeng2015/luci,ReclaimYourPrivacy/cloak-luci,Hostle/openwrt-luci-multi-user,slayerrensky/luci,LuttyYang/luci,rogerpueyo/luci,nwf/openwrt-luci,db260179/openwrt-bpi-r1-luci,nwf/openwrt-luci,schidler/ionic-luci,openwrt/luci,obsy/luci,lcf258/openwrtcn,david-xiao/luci,dismantl/luci-0.12,Sakura-Winkey/LuCI,Noltari/luci,openwrt-es/openwrt-luci,cshore/luci,LazyZhu/openwrt-luci-trunk-mod,ff94315/luci-1,jlopenwrtluci/luci,nwf/openwrt-luci,Sakura-Winkey/LuCI,thess/OpenWrt-luci,db260179/openwrt-bpi-r1-luci,dismantl/luci-0.12,florian-shellfire/luci,MinFu/luci,chris5560/openwrt-luci,rogerpueyo/luci,981213/luci-1,harveyhu2012/luci,aircross/OpenWrt-Firefly-LuCI,male-puppies/luci,dismantl/luci-0.12,jorgifumi/luci,joaofvieira/luci,remakeelectric/luci,remakeelectric/luci,slayerrensky/luci,artynet/luci,cshore-firmware/openwrt-luci,keyidadi/luci,teslamint/luci,shangjiyu/luci-with-extra,cshore/luci,fkooman/luci,RuiChen1113/luci,teslamint/luci,lcf258/openwrtcn,RuiChen1113/luci,ollie27/openwrt_luci,Kyklas/luci-proto-hso,florian-shellfire/luci,shangjiyu/luci-with-extra,florian-shellfire/luci,jchuang1977/luci-1,zhaoxx063/luci,LazyZhu/openwrt-luci-trunk-mod,lbthomsen/openwrt-luci,NeoRaider/luci,daofeng2015/luci,forward619/luci,LuttyYang/luci,aircross/OpenWrt-Firefly-LuCI,dwmw2/luci,kuoruan/lede-luci,palmettos/cnLuCI,lcf258/openwrtcn,ollie27/openwrt_luci,jorgifumi/luci,ff94315/luci-1,nmav/luci,ollie27/openwrt_luci,joaofvieira/luci,david-xiao/luci,Noltari/luci,urueedi/luci,bright-things/ionic-luci,urueedi/luci,florian-shellfire/luci,maxrio/luci981213,tcatm/luci,taiha/luci,slayerrensky/luci,RuiChen1113/luci,openwrt/luci,deepak78/new-luci,keyidadi/luci,schidler/ionic-luci,nmav/luci,schidler/ionic-luci,rogerpueyo/luci,opentechinstitute/luci,aircross/OpenWrt-Firefly-LuCI,harveyhu2012/luci,male-puppies/luci,artynet/luci,oyido/luci,florian-shellfire/luci,ReclaimYourPrivacy/cloak-luci,lbthomsen/openwrt-luci,Wedmer/luci,thess/OpenWrt-luci,Hostle/openwrt-luci-multi-user,Hostle/openwrt-luci-multi-user,daofeng2015/luci,db260179/openwrt-bpi-r1-luci,male-puppies/luci,ff94315/luci-1,wongsyrone/luci-1,sujeet14108/luci,cappiewu/luci,cshore-firmware/openwrt-luci,lcf258/openwrtcn