Add more test profiles for later Clojure versions

Author: weavejester

project.clj

@@ -11,4 +11,6 @@
   :profiles
   {:1.4 {:dependencies [[org.clojure/clojure "1.4.0"]]}
    :1.5 {:dependencies [[org.clojure/clojure "1.5.1"]]}
-   :1.6 {:dependencies [[org.clojure/clojure "1.6.0"]]}})
+   :1.6 {:dependencies [[org.clojure/clojure "1.6.0"]]}
+   :1.7 {:dependencies [[org.clojure/clojure "1.7.0"]]}
+   :1.8 {:dependencies [[org.clojure/clojure "1.8.0"]]}})