Changes for clojure.contrib.str-utils2/take

wikopl on Sat, 23 Mar 2013
(take 23 [1 2 4 5 6])
(1 2 4 5 6)

(take 3 [1 2 4 5 6])
(1 2 4)

(take -1 [1 2 4 5 6])
()