2011-06-02  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/gui-util.h (gnm_load_pango_attributes_into_buffer): add
	argument, change all callers
	* src/gui-util.c (gnm_load_pango_attributes_into_buffer): add
	argument, correctly align pango offsets with buffer char-offsets
	(gnm_load_pango_byte_to_char): new