Fix #749 Ensure transcode settings are protected

Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>

airsonic-main/src/main/java/org/airsonic/player/security/GlobalSecurityConfig.java

@@ -133,7 +133,7 @@ public class GlobalSecurityConfig extends GlobalAuthenticationConfigurerAdapter
                             "/playerSettings*", "/shareSettings*", "/passwordSettings*")
                     .hasRole("SETTINGS")
                     .antMatchers("/generalSettings*", "/advancedSettings*", "/userSettings*",
-                            "/musicFolderSettings*", "/databaseSettings*", "/rest/startScan*")
+                            "/musicFolderSettings*", "/databaseSettings*", "/transcodeSettings*", "/rest/startScan*")
                     .hasRole("ADMIN")
                     .antMatchers("/deletePlaylist*", "/savePlaylist*", "/db*")
                     .hasRole("PLAYLIST")