Issue webcompat#978. See if we can teach Travis to use Node 0.12.7

.travis.yml

@@ -6,6 +6,8 @@ language: python
 python:
   - "2.7"
 
+
+
 # cache pip and npm package installations
 cache:
   pip: true
@@ -25,6 +27,7 @@ env:
     - ISSUES_REPO_URI=webcompat/webcompat-tests/issues
     - FAKE_ID=e80a666fbf1fa9ea18db
     - FAKE_SECRET=688c4546f09624f8c44773b22268064dfca19a59
+    - TRAVIS_NODE_VERSION="0.12.7"
 
 before_install:
   - "export DISPLAY=:99.0"
@@ -34,9 +37,10 @@ before_install:
   - cd -
 
 install:
+  - rm -rf ~/.nvm && git clone https://github.com/creationix/nvm.git ~/.nvm && (cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`) && source ~/.nvm/nvm.sh && nvm install $TRAVIS_NODE_VERSION
   - travis_retry npm install -g grunt-cli
   - travis_retry npm install
-  - travis_retry pip install -r requirements.txt 
+  - travis_retry pip install -r requirements.txt
   - cp config/secrets.py.example config/secrets.py
   # lint python
   - pep8 --ignore=E402 webcompat/ tests/ config/secrets.py.example