Redo log level flags

* -vv or --log-level DEBUG
  * -v or --log-level INFO
  * --log-level NOTICE (default)
  * -q --log-level ERROR

Replace Config.Verbose and Config.Quiet with Config.LogLevel

Fixes #739 Fixes #1108 Fixes #1000

fs/operations_test.go

@@ -105,8 +105,9 @@ func newRun() *Run {
 	// "RCLONE_CONFIG_PASS=hunter2" (or your password)
 	*fs.AskPassword = false
 	fs.LoadConfig()
-	fs.Config.Verbose = *Verbose
-	fs.Config.Quiet = !*Verbose
+	if *Verbose {
+		fs.Config.LogLevel = fs.LogLevelDebug
+	}
 	fs.Config.DumpHeaders = *DumpHeaders
 	fs.Config.DumpBodies = *DumpBodies
 	fs.Config.LowLevelRetries = *LowLevelRetries