fix download part problem, add png support
fix download part problem, add png support

cngolang/gogs,pentix/gogs,Immortalin/gogs,denghongcai/gogs,yaggytter/gogs,linquize/gitea,eddiesigner/gogs,haoyixin/gogs,svcavallar/gogs,psolyca/gitea,Em-AK/gogs,strk/gogs,kloudsio/gogs,vdbt/gitea,psolyca/gitea,helojo/gogs,huyueMiss/gogs,pikacloud/pikacode,tszym/gogs,cem/gogs,golang-lib/gogs,Janfred/gogs,kiliit/gogs,fabric8io/gogs,voxxit/gogs,gemili/gogs,xaionaro/gogs,xiaoyanit/gogs,tboerger/gitea,jacobxk/gogs,peterhadlaw/gogs,hiproz/gogs,sillydong/gogs,pentix/gogs,pecastro/gogs,fabric8io/gogs,lucienevans/gogs,pkgr/gogs,nounoursheureux/gitea,uileyar/gogs,dentmaged/gogs,svcavallar/gogs,pecastro/gogs,sapk/gogs,beni55/gogs,ethantkoenig/gogs,mjwwit/gitea,w4ngyi/gogs,gemili/gogs,everhopingandwaiting/gogs,GodOfConquest/gogs,denghongcai/gogs,kubatyszko/gitea,hzy001/gogs,wangjild/gogs,jvanderneutstulen/gogs,chriswatt/gogs,andrewrothstein/gogs,kong36088/SCAUGogits,andreynering/gitea,tanapoln/gogs,noikiy/gogs,helojo/gogs,DblK/gitea,kseistrup/gogs,denji/gitea,sapk-fork/gitea,lunny/gitea,go-gitea/gitea,dnmgns/gitea,armersong/gogs,yonglehou/gogs,yaggytter/gogs,fanningert/gogs,kloudsio/gogs,dlob/gogs,lucienevans/gogs,willemvd/gitea,Em-AK/gogs,linquize/gogs,Bwko/gitea,kjellkvinge/gitea,Ralph-Wang/gogs,xaionaro/gogs,noikiy/gogs,manfer/gitea,wqweto/gogs,odinuge/gogs,kjellkvinge/gitea,AndreaGiardini/gogs,cngolang/gogs,dlob/gogs,tony/gogs,geek1011/gitea,kong36088/SCAUGogits,pkgr/gogs,gigforks/gogs,dlob/gogs,0rax/gogs,pwelter34/gogs,pentix/gogs,jqs7/gogs,ethantkoenig/gogs,andrewrothstein/gogs,yonglehou/gogs,faddat/gogs,bkcsoft/gogs,avelino/gitea,wqweto/gogs,Immortalin/gogs,ForxaCoLab/forxa,lunny/gitea,cgars/gogs,jvanderneutstulen/gogs,pikacloud/pikacode,cez81/gitea,yaggytter/gogs,andreynering/gitea,Spice-King/gogs,treejames/gogs,mpindado/gogs,fanningert/gogs,jacobxk/gogs,DebansNetwork/gogs,armersong/gogs,codeskyblue/gogs,denji/gitea_tmp,xet7/gogs,everhopingandwaiting/gogs,tboerger/gitea,dancewing/gogs,cem/gogs,sooboy/gogs,odinuge/gogs,0x0all/gogs,bygreencn/gogs,pwelter34/gogs,tempbottle/gogs,admik/gitea,tszym/gogs,cumgun/gitea,odinuge/gogs,xet7/gogs,mapmeld/codemingler,kevinc0825/gogs,opavader/gogs,mark77z/tt2016,nounoursheureux/gitea,siadat/gogs,cgars/gogs,gigforks/gogs,vCaesar/gitea,gogits/gogs,yonglehou/gogs,likeit92/gogs,0rax/gogs,cloudron-io/gogs,sapk-fork/gitea,gogits/gogs,xiaoyanit/gogs,go-gitea/gitea,mpindado/gogs,kubatyszko/gitea,cloudron-io/gogs,cumgun/gitea,SlavikZ/gogs,denji/gitea_tmp,dnmgns/gitea,AnuchitPrasertsang/gogs,manfer/gogs,linquize/gogs,cybe/gitea,lunny/gitea,imjerrybao/gogs,kolonse/gogs,voxxit/gogs,cngolang/gogs,faddat/gogs,DblK/gitea,codeskyblue/gogs,w4ngyi/gogs,mark77z/tt2016,huyueMiss/gogs,sapk-fork/gitea,dentmaged/gogs,rems4e/gitea,AnuchitPrasertsang/gogs,geerlingguy/gogs,opavader/gogs,tony/gogs,ethantkoenig/gitea,JonasFranzDEV/gitea,eddiesigner/gogs,typeless/gitea,hzy001/gogs,kiliit/gogs,xormplus/gitea,DebansNetwork/gogs,haoyixin/gogs,cgars/gogs,Janfred/gogs,lucienevans/gogs,likeit92/gogs,mapmeld/codemingler,Ralph-Wang/gogs,siadat/gogs,tpires/gogs,golang-lib/gogs,gemili/gogs,psaavedra/gogs,mukaiu/gogs,kolonse/gogs,pwelter34/gogs,typeless/gitea,svcavallar/gogs,Spice-King/gogs,wangjild/gogs,kolonse/gogs,AnuchitPrasertsang/gogs,beni55/gogs,dentmaged/gogs,ForxaCoLab/forxa,GodOfConquest/gogs,mpindado/gogs,strk/gogs,Immortalin/gogs,sapk-fork/gitea,metadevfoundation/gogs,minecrafter/gitea,everhopingandwaiting/gogs,chriswatt/gogs,gwynantj/gogs,mukaiu/gogs,opavader/gogs,tempbottle/gogs,xaionaro/gogs,kseistrup/gogs,vdbt/gitea,liliexuan/gogs,faddat/gogs,jorgesumle/gitea,JonasFranzDEV/gitea,mapmeld/codemingler,Janfred/gogs,kjellkvinge/gitea,kevinc0825/gogs,mukaiu/gogs,avelino/gitea,ethantkoenig/gitea,xet7/gogs,kiliit/gogs,psaavedra/gogs,everhopingandwaiting/gogs,tony/gogs,tpires/gogs,jorgesumle/gitea,linquize/gitea,0rax/gogs,SlavikZ/gogs,dl5rcw/gitea,treejames/gogs,gigforks/gogs,bkcsoft/gogs,Morlinest/gitea,pikacloud/pikacode,Morlinest/gitea,tanapoln/gogs,chriswatt/gogs,manfer/gitea,typeless/gitea,treejames/gogs,denji/gitea_tmp,pecastro/gogs,bkcsoft/gogs,puffybsd/gitea,tboerger/gitea,joshk/gogs,jqs7/gogs,lafriks/gitea,AndreaGiardini/gogs,mjwwit/gitea,jaseg/gogs,manfer/gogs,gwynantj/gogs,AndreaGiardini/gogs,jaseg/gogs,richmahn/gogs,Em-AK/gogs,CaeruleusAqua/gitea,Spice-King/gogs,huyueMiss/gogs,spacetourist/gitea,spacetourist/gitea,kloudsio/gogs,tanapoln/gogs,sillydong/gogs,agaurav/gogs,sapk/gogs,agaurav/gogs,andrewrothstein/gogs,golang-lib/gogs,nounoursheureux/gitea,hiproz/gogs,0x0all/gogs,avelino/gitea,Bwko/gitea,CaeruleusAqua/gitea,dnmgns/gitea,voxxit/gogs,gwynantj/gogs,wangjild/gogs,jacobxk/gogs,kong36088/SCAUGogits,armersong/gogs,strk/gogs,dancewing/gogs,peterhadlaw/gogs,joshk/gogs,GodOfConquest/gogs,uileyar/gogs,fabric8io/gogs,metadevfoundation/gogs,0x0all/gogs,rems4e/gitea,makhov/gitea,geerlingguy/gogs,DebansNetwork/gogs,geerlingguy/gogs,gigforks/gogs,sapk/gogs,imjerrybao/gogs,cez81/gitea,cybe/gitea,haoyixin/gogs,SlavikZ/gogs,tszym/gogs,agaurav/gogs,kubatyszko/gitea,Ralph-Wang/gogs,gogits/gogs,peterhadlaw/go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