Add flatten-all from clojail.
Release 0.9.3.
0.9.4-SNAPSHOT
Add mmap-file and associated test.
Inc version.
Back to snapshot
Upgrade to clojure 1.5.0.
Change read-seq to use the edn reader.
Fix a typo.
Move with-timing to utils.clj.
Version 0.10.0.
Memoize a bit more of the expensive work in dispatcher
Add useful.seq/groupings
Inc version
Update testall alias to match clojure version
Support complex bindings in let-later
Make let-later more readable with a letfn
Remove vile useful.core ns
Make merge-sorted work with no sequence-args.

Useful if you want to do something like (apply merge-sorted < (foo)),
where (foo) might return an empty list.
Make merge-sorted as lazy as possible