2013-06-26  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* xlsx-utils.c (lsx_func_binominv_handler): use GnmExprList
	rather than GSList
	(xlsx_func_dist_handler): new
	(xlsx_func_chisqdist_handler): new
	(xlsx_func_fdist_handler): new
	(xlsx_conventions_new): connect the last two

2013-06-26  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/expr.c (gnm_expr_list_copy): new
	* src/expr.h (gnm_expr_list_copy): new