Merge pull request #152 from rod-hynes/master

Fix: actually skip download when intending to

psiphon/upgradeDownload.go

@@ -131,6 +131,7 @@ func DownloadUpgrade(
 			NoticeInfo(
 				"skipping download of available client version %d",
 				checkAvailableClientVersion)
+			return nil
 		}
 	}