2009-12-20  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/sheet-style.h (sheet_style_set_list): change arguments
	* src/sheet.c: change all calls to sheet_style_set_list
	* src/commands.c: ditto
	* src/sheet-style.c: ditto
	(sheet_style_set_list): change arguments and adjust code
	* src/clipboard.c (range_flip_h): new
	(range_flip_v): new
	(clipboard_paste_region): handle PASTE_FLIP_H and
	  PASTE_FLIP for styles