Add conversion program for converting between versions of RCW

extra/conversion-scripts/gpgToRCW/main.go

@@ -25,7 +25,7 @@ func main() {
 		break
 	}
 
-	// decrypt all GPG-encrypted entries to the output directory
+	// convert the entries
 	fmt.Print("\nRe-encrypting entries. Please wait; do not force close this process.\n\nGPG may prompt you for a passphrase for decryption.\n\n")
 	var outputDir = global.EntryRoot + "-new"
 	entries, folders := synccommon.WalkEntryDir()