Increase versions of node on the test matrix

Author: cquiroz

.travis.yml

@@ -19,7 +19,14 @@ scala:
 before_install:
   - export PATH=${PATH}:./vendor/bundle
 
+env:
+  - TRAVIS_NODE_VERSION="5.12.0"
+  - TRAVIS_NODE_VERSION="6.10.0"
+  - TRAVIS_NODE_VERSION="7.6.0"
+
 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
+  - npm install
   - rvm use 2.2.3 --install --fuzzy
   - gem update --system
   - gem install sass
@@ -30,15 +37,13 @@ cache:
     - $HOME/.ivy2
     - $HOME/.m2
     - $HOME/.coursier
-
-env:
-  - COURSIER_NO_TERM=1
+    - $HOME/.sbt/boot
 
 script:
   - sbt ++$TRAVIS_SCALA_VERSION clean scalajavatimeJVM/test
   - sbt ++$TRAVIS_SCALA_VERSION clean scalajavatimeJS/test
   - sbt docs/makeMicrosite
-  #- sbt clean coverage test &&
-  #  sbt coverageAggregate
-after_success:
-  #- sbt coveralls
+  # Tricks to avoid unnecessary cache updates, from
+  # http://www.scala-sbt.org/0.13/docs/Travis-CI-with-sbt.html
+  - find $HOME/.sbt -name "*.lock" | xargs rm
+  - find $HOME/.ivy2 -name "ivydata-*.properties" | xargs rm