[Tests] npm v4.6+ breaks on node < v1

Author: ljharb

.travis.yml

@@ -10,8 +10,10 @@ node_js:
   - "0.10"
   - "0.8"
 before_install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then case "$(npm --version)" in 1.*) npm install -g [email protected] ;; 2.*) npm install -g npm@2 ;; esac ; fi'
-  - 'if [ "${TRAVIS_NODE_VERSION}" != "0.6" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then npm install -g npm; fi'
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then npm install -g [email protected] ; elif [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then case "$(npm --version)" in 1.*) npm install -g [email protected] ;; 2.*) npm install -g npm@2 ;; esac ; fi'
+  - 'if [ "${TRAVIS_NODE_VERSION%${TRAVIS_NODE_VERSION#[0-9]}}" = "0" ]; then npm install -g [email protected] ; elif [ "${TRAVIS_NODE_VERSION}" != "0.6" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then npm install -g npm; fi'
+install:
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then nvm install 0.8 && npm install -g [email protected] && npm install -g [email protected] && npm install -g npm@2 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
 matrix:
   fast_finish: true
   allow_failures: