Move nvmrc file into frontend subdirectory.

.travis.yml

@@ -1,19 +0,0 @@
-language: clojure
-sudo: false
-lein: lein
-
-script:
-  - ./scripts/build-tests
-  - nvm install v5.10.1
-  - node --version
-  - node out/tests.js
-
-jdk:
-  - oraclejdk8
-
-notifications:
-  email:
-    recipients:
-      - niwi@niwi.nz
-    on_success: change
-    on_failure: change