Fix CI failing due to diff caused by npm install (#277)

* Printing git diff

* Stop caching node_modules

Author: MarcusLongmuir

.travis.yml

@@ -27,9 +27,6 @@ deploy:
   tag: "$NPM_TAG"
   on:
     branch: master
-cache:
-  directories:
-  - node_modules
 install:
 - npm install
 script:

travis-ci-build.sh

@@ -5,6 +5,9 @@ npm run lint
 npm test
 
 npm run generate
+
+git --no-pager diff
+
 MODIFIED_FILES=$(git diff --name-only)
 if [[ -n $MODIFIED_FILES ]]; then
   echo "ERROR: Changes detected in generated code, please run 'npm run generate' and check-in the changes."