Update .travis.yml

Author: fubhy

Diff for: .travis.yml

@@ -5,6 +5,7 @@ php:
   - 5.5
   - 5.6
   - 7
+  - 7.1
 
 env:
   global:
@@ -13,22 +14,21 @@ env:
     - SIMPLETEST_DB=mysql://root:@127.0.0.1/graphql
     - TRAVIS=true
   matrix:
-    - DRUPAL_CORE=8.2.x
     - DRUPAL_CORE=8.3.x
     - DRUPAL_CORE=8.4.x
 
 matrix:
   # Don't wait for the allowed failures to build.
   fast_finish: true
   include:
-    - php: 7
+    - php: 7.1
       env:
         - DRUPAL_CORE=8.4.x
         # Only run code coverage on the latest php and drupal versions.
         - WITH_PHPDBG_COVERAGE=true
   allow_failures:
     # Allow the code coverage report to fail.
-    - php: 7
+    - php: 7.1
       env:
         - DRUPAL_CORE=8.4.x
         # Only run code coverage on the latest php and drupal versions.