Allow Gogs to run from a suburl behind a reverse proxy. e.g. http://mydomain.com/gogs/

Conflicts:
	modules/setting/setting.go

Conflicts:
	templates/repo/release/list.tmpl
	templates/user/dashboard/dashboard.tmpl

Conflicts:
	routers/repo/setting.go

templates/org/team/teams.tmpl

@@ -25,7 +25,7 @@
 				{{if .NumMembers}}
 				<div class="panel-body member-avatar-group">
 					{{range .Members}}
-					<a href="/{{.Name}}" title="{{.Name}}">
+					<a href="{{AppRootSubUrl}}/{{.Name}}" title="{{.Name}}">
 						<img src="{{.AvatarLink}}">
 					</a>
 					{{end}}