Test the package on PHP 7.2 too

LKaemmerling · LKaemmerling · commit 3571f356254d · 2018-01-05T13:54:20.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
   - 7.0
   - 7.1
+  - 7.2
 
 env:
   matrix:

-Original file line number
+Diff line change
 php:
   - 7.0
   - 7.1
 +  - 7.2
 env:
   matrix: