Added #getCommands() method which can be used for help commands.

sdcf4j-core/src/main/java/de/btobastian/sdcf4j/CommandHandler.java

@@ -20,6 +20,7 @@
 
 import java.lang.reflect.Method;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 
@@ -96,6 +97,16 @@ public boolean hasPermission(String userId, String permission) {
         return false;
     }
 
+    /**
+     * Gets a list with all commands in the order they were registered.
+     * This is useful for automatic help commands.
+     *
+     * @return A list with all commands the the order they were registered.
+     */
+    public List<SimpleCommand> getCommands() {
+        return Collections.unmodifiableList(commandList);
+    }
+
     /**
      * Checks if you are allowed to do something with the given permission.
      *