Merge branch 'release/3.0.1'

Author: budnix

.travis.yml

@@ -3,12 +3,11 @@ language: node_js
 sudo: false
 
 node_js:
-  - '6'
+  - '10'
 
 install:
-  - npm install yarn -g
-  - yarn install
-  - yarn global add codeclimate-test-reporter
+  - npm ci
+  - npm install -g codeclimate-test-reporter
 
 before_script:
   - export TZ=Europe/Warsaw