[fixed] tls timeout now accepts units

Signed-off-by: Matthias Hanel <mh@synadia.com>

server/configs/tls.conf

@@ -5,7 +5,7 @@ listen: 127.0.0.1:4443
 tls {
   cert_file:  "./configs/certs/server.pem"
   key_file:   "./configs/certs/key.pem"
-  timeout:    2
+  timeout:    "2s"
 }
 
 authorization {

server/opts.go

@@ -3552,6 +3552,14 @@ func parseTLS(v interface{}, isClientCtx bool) (t *TLSConfigOpts, retErr error)
 				at = float64(mv)
 			case float64:
 				at = mv
+			case string:
+				d, err := time.ParseDuration(mv)
+				if err != nil {
+					return nil, &configErr{tk, fmt.Sprintf("error parsing tls config, 'timeout' %s", err)}
+				}
+				at = d.Seconds()
+			default:
+				return nil, &configErr{tk, "error parsing tls config, 'timeout' wrong type"}
 			}
 			tc.Timeout = at
 		case "pinned_certs":