Adds npm install script to .travis.yml

Travis CI seems to fail to fetch a dependency referenced by a commit-ish git url. https://travis-ci.org/cettia/cettia-javascript-client/builds/229181060 By inserting npm install script which installs such dependencies to before_script section in .travis.yml, we can circumvent this issue for now.
cettia · May 6, 2017 · 0732fa7 · 0732fa7 · flowersinthesand · May 8, 2017
1 parent b2cbefc
commit 0732fa7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -6,3 +6,5 @@ node_js:
   - 7
 before_script:
   - npm install -g grunt-cli
+  - npm i cettia/cettia-protocol#f83e99cdc202b4818c2041b1563ee8a6ac8c8f00
+