Merge branch 'filoozom-patch-1'

* filoozom-patch-1:
  Fix divided by zero when the sync folder is empty (tot = 0)
  Delete cfgFile before renaming it on Windows
  Set the right config and home dir for each OS
  Update getHomeDir() to use "os/user"

cmd/syncthing/model.go

@@ -191,7 +191,10 @@ func (m *Model) ConnectionStats() map[string]ConnectionInfo {
 			}
 		}
 
-		ci.Completion = int(100 * have / tot)
+		ci.Completion = 100
+		if tot != 0 {
+			ci.Completion = int(100 * have / tot)
+		}
 
 		res[node] = ci
 	}