tools.completion: matching names.
sorting: speed up sort-keys and sort-values by doing less bounds checking.
benchmark.sort: slow down sorting to test sorting alists.
math.floats: Fix the output of /mod and add some unit tests. Fixes #803.
hash-sets: faster grow-hash by not calling members.
hashtables: faster grow-hash by not calling >alist.
readline-listener: fix for tools.completion renames.
tools.completion: fix test cases.