- core/FHC_Controller->outputFile cleaned

- Adapted controllers/lehre/anrechnung/* to make use of the changed core/FHC_Controller->outputFile
- Changed application/core/FS_Model:
	- It's not abstract anymore
	- Added new constants READ_MODE, READ_WRITE_MODE, READ_APPEND_MODE, BLOCK_SIZE, META_URI
	- Constructor accept a mandatory parameter
	- Does not load the FilesystemLib anymore
	- Renamed all the public methods with the suffix Base64
	- Added new public methods openRead, openReadWrite, openReadAppend, close, readBlock and write
	- Added new private methods _checkPath and _open
- Removed the libraries/FilesystemLib
- Adapted model content/DmsFS_model to make use of the changed core/FS_Model
- Changed libraries/DmsLib:
	- Does not extend the FHC_Controller anymore
	- removed private propery UPLOAD_PATH
	- Cleaned code, make use of the standards
	- Adapted to use the Base64 suffixed methods from core/FS_Model
	- Deprecated old methods
	- Refactored public methods download and getFileInfo

application/models/content/DmsFS_model.php

@@ -7,7 +7,7 @@ class DmsFS_model extends FS_Model
 	 */
 	public function __construct()
 	{
-		parent::__construct();
-		$this->filepath = DMS_PATH;
+		parent::__construct(DMS_PATH);
 	}
-}
+}
+