Update for Lein 2.
v1.3.0: Add `split-atom!` and `deterministic`
lein ignores
Add a paging fn
if-let+, a multi-binding if-let
Merge branches 'if-let' and 'paging' into develop
Version 1.4.0: Add if-let+ and paging.
Put return type after arguments.
Merge branch 'master' into develop
Post-merge fixup -- make repl ns compatible with Clojure 1.2.