chore(deps): update

Author: alexander-akait

.travis.yml

@@ -7,19 +7,23 @@ matrix:
   fast_finish: true
   include:
     - os: linux
-      node_js: "10"
-      env: WEBPACK_VERSION="4.15.0" JOB_PART=lint
+      node_js: "11"
+      env: WEBPACK_VERSION="latest" JOB_PART=lint
+    - os: linux
+      node_js: "11"
+      env: WEBPACK_VERSION="latest" JOB_PART=test
     - os: linux
       node_js: "10"
-      env: WEBPACK_VERSION="4.15.0" JOB_PART=test
+      env: WEBPACK_VERSION="latest" JOB_PART=test
     - os: linux
       node_js: "8"
-      env: WEBPACK_VERSION="4.15.0" JOB_PART=test
+      env: WEBPACK_VERSION="latest" JOB_PART=test
     - os: linux
       node_js: "6"
-      env: WEBPACK_VERSION="4.15.0" JOB_PART=test
+      env: WEBPACK_VERSION="latest" JOB_PART=test
 before_install:
   - nvm --version
+  - npm --version
   - node --version
 before_script:
   - 'if [ "$WEBPACK_VERSION" ]; then npm i webpack@^$WEBPACK_VERSION; fi'