2011-07-20  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/collect.h (collect_float_pairs): add argument
	* src/collect.c (pairs_floats_cache_entry_free): new
	(pairs_floats_cache_entry_hash): new
	(pairs_floats_cache_entry_equal): new
	(clear_caches): handle pairs_floats_cache
	(create_caches): ditto
	(prune_caches): ditto
	(get_pairs_floats_cache_entry): ditto
	(get_or_fake_pairs_cache_entry): ditto
	(get_single_cache_key_from_value): new
	(get_single_cache_key): use get_single_cache_key_from_value
	(collect_floats): no need to initialize cl if we don't use it
	(collect_float_pairs_ce): new
	(collect_float_pairs): use cache and collect_float_pairs_ce

2011-07-20 Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* functions.c (gnumeric_growth): add new argument to collect_float_pairs
	call

2011-07-20 Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* functions.c (gnumeric_interpolation): add new argument to collect_float_pairs
	call