Revert chnges

.travis.yml

@@ -8,10 +8,9 @@ env:
     - COVERALLS_PARALLEL=true
 
 jobs:
-  include:
-    - script: WEBPACK_VERSION=V4 && npm run test && npm run coveralls
-    - script: WEBPACK_VERSION=V3 && npm run test && npm run coveralls
-    - script: WEBPACK_VERSION=V2 && npm run test && npm run coveralls
+  WEBPACK_VERSION=V4
+  WEBPACK_VERSION=V3
+  WEBPACK_VERSION=V2
 
 before_install:
   - if [ "$WEBPACK_VERSION" = "V3" ]; then  rm -f package-lock.json; sed "s/\"webpack\":\s*\"4\.[0-9]\+\.[0-9]\+\"/\"webpack\":\"3.11.0\"/" package.json >package.webpack3.json; cp -f ./package.webpack3.json ./package.json; fi
@@ -22,5 +21,8 @@ cache:
 
 sudo: false
 
+after_success:
+  - npm run coveralls
+
 notifications:
   webhooks: https://coveralls.io/webhook