Travis update

Based on 676aa83#diff-354f30a63fb0907d4ad57269548329e3

Author: jastend

.travis.yml

@@ -1,9 +1,9 @@
 language: php
 
 php:
+  - 7.2
+  - 7.1
   - 7.0
-  - 5.6
-  - 5.5
 
 notifications:
   slack: nukacode:HyFrc2QLi5PC5fPxadm07O5v
@@ -23,4 +23,4 @@ before_script:
 script:
   - phpunit --coverage-clover=coverage.clover
   - wget https://scrutinizer-ci.com/ocular.phar
-  - php ocular.phar code-coverage:upload  --format=php-clover coverage.clover
+  - php ocular.phar code-coverage:upload  --format=php-clover coverage.clover