Tweak docker target to work by default. (#1033)
Tweak docker target to work by default. (#1033)

Fix for #1013: adds "bindata" to tags by default, as without this the
resulting docker image won't start, as it doesn't contain locale files.
Verified to work even if you specify TAGS="bindata" such that it appears
twice.
cumgun/gitea,Bwko/gitea,psolyca/gitea,andreynering/gitea,puffybsd/gitea,psolyca/gitea,ethantkoenig/gogs,richmahn/gogs,mjwwit/gitea,kjellkvinge/gitea,cybe/gitea,vdbt/gitea,ethantkoenig/gitea,spacetourist/gitea,lafriks/gitea,kubatyszko/gitea,rems4e/gitea,rems4e/gitea,vCaesar/gitea,vCaesar/gitea,lunny/gitea,typeless/gitea,kjellkvinge/gitea,DblK/gitea,geek1011/gitea,Morlinest/gitea,jorgesumle/gitea,dnmgns/gitea,typeless/gitea,tboerger/gitea,cumgun/gitea,kubatyszko/gitea,lunny/gitea,vdbt/gitea,JonasFranzDEV/gitea,DblK/gitea,lunny/gitea,geek1011/gitea,Bwko/gitea,dl5rcw/gitea,Bwko/gitea,cez81/gitea,jorgesumle/gitea,andreynering/gitea,sapk-fork/gitea,CaeruleusAqua/gitea,JonasFranzDEV/gitea,dnmgns/gitea,Morlinest/gitea,tboerger/gitea,lafriks/gitea,cez81/gitea,mjwwit/gitea,willemvd/gitea,sapk-fork/gitea,dnmgns/gitea,kubatyszko/gitea,sapk-fork/gitea,typeless/gitea,cez81/gitea,typeless/gitea,kjellkvinge/gitea,go-gitea/gitea,go-gitea/gitea,ethantkoenig/gogs,lafriks/gitea,CaeruleusAqua/gitea,sapk-fork/gitea,cybe/gitea,spacetourist/gitea,tboerger/gitea,ethantkoenig/gitea,go-gitea/gitea,richmahn/gogs