travis: tested using Nette Coding Standard

.travis.yml

@@ -1,12 +1,16 @@
 language: php
 php:
-    - 5.6
+    - 7.1
 
-script:
-    - php code-checker/src/code-checker.php
+install:
+    # Install Nette Code Checker
+    - travis_retry composer create-project nette/code-checker temp/code-checker ~2 --no-progress
+    # Install Nette Coding Standard
+    - travis_retry composer create-project nette/coding-standard temp/coding-standard --no-progress
 
-before_script:
-    - travis_retry composer create-project nette/code-checker code-checker --no-interaction
+script:
+    - php temp/code-checker/src/code-checker.php --short-arrays --strict-types
+    - php temp/coding-standard/ecs check . --config temp/coding-standard/coding-standard-php71.neon
 
 sudo: false