Changes for clojure.core/distinct

jafingerhut on Wed, 28 Mar 2012
user=> (distinct [1 2 1 3 1 4 1 5])
(1 2 3 4 5)
zmila on Wed, 28 Jul 2010
user=> (distinct [1 2 1 3 1 4 1 5])
(1 2 3 4 5) 
zmila on Wed, 28 Jul 2010
user=> (distinct [1 2 1 3 1 4 1 5])