[TASK] Implemented the ProtocolHandler things so it works again.

[TASK] Added some comments.
[TASK] Added TODOs concerning refactoring and more functions that are needed.

Classes/Misc/Buffer.php

@@ -81,7 +81,7 @@ class Misc_Buffer {
 	 */
 	public function getNextChars($length) {
 		//TODO: substr und so
-		return "";
+		throw new Exception_GeneralException("This feature is not implemented yet!", 1291824224);
 	}
 
 	/**