Big docs cleanup.

* Fixed headers including:
  - All rights reserved not All Rights Reserved.
  - name, [email protected] not name <[email protected]>
  - tabs and spaces
  - Authors: not Documented by:
* Renamed string.dox to String.dox
* Renamed midixxx.dox files to MidiXxx.dox
* Moved images into images subdirectories and updated Doxfile.
* Re-format all files with tabs instead of spaces.
* Fix many spelling mistakes.
* Added all files, classes, structs, and enums to libbe group.

docs/user/storage/FilePanel.dox

@@ -13,42 +13,52 @@
 
 /*!
 	\file FilePanel.h
+	\ingroup storage
+	\ingroup libbe
 	\brief Provides the BFilePanel and BRefFilter classes and support enums.
 */
 
 
 /*!
 	\enum file_panel_mode
-	Whether the file panel is a save or open panel.
+	\ingroup storage
+	\ingroup libbe
+	\brief Whether the file panel is a save or open panel.
 */
 
 
 /*!
 	\var file_panel_mode B_OPEN_PANEL
+
 	Open panel
 */
 
 
 /*!
 	\var file_panel_mode B_SAVE_PANEL
+
 	Save panel
 */
 
 
 /*!
 	\enum file_panel_button
-	List of buttons used by the file panel
+	\ingroup storage
+	\ingroup libbe
+	\brief List of buttons used by the file panel
 */
 
 
 /*!
 	\var file_panel_button B_CANCEL_BUTTON
+
 	Cancel button
 */
 
 
 /*!
 	\var file_panel_button B_DEFAULT_BUTTON
+
 	Default button
 */