Takes a number and calculates the number of steps to reach 1 using steps outlined in the Collatz Conjecture.
see https://en.wikipedia.org/wiki/Collatz_conjecture
lein compile
lein uberjar
lein test
java -jar target/uberjar/collatz-clojure-${VERSION}-standalone.jar ${INPUT}
$ lein compile
$ lein uberjar
Compiling collatz-clojure.core
Created target/uberjar/collatz-clojure-0.1.0-SNAPSHOT.jar
Created target/uberjar/collatz-clojure-0.1.0-SNAPSHOT-standalone.jar
$ java -jar target/uberjar/collatz-clojure-0.1.0-SNAPSHOT-standalone.jar 8
3