Fix travis ci configuration

Author: Ulf Gitschthaler

.travis.yml

@@ -1,5 +1,5 @@
 language: clojure
-lein: lein2
-script: lein2 test
+lein: lein
+script: lein test
 after_script:
       - bash -ex coveralls.sh

coveralls.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
-lein2 cloverage --coveralls
+lein cloverage --coveralls
 curl -F 'json_file=@target/coverage/coveralls.json' 'https://coveralls.io/api/v1/jobs'