Merge pull request #422 from contactashish13/issue-421

Travis builds for PHP below 5.6 fail with latest WP

Author: contactashish13

.travis.yml

@@ -1,21 +1,23 @@
 language: php
-php:
-- '7.1'
-- '7.0'
-- '5.6'
-- '5.5'
-- '5.4'
 sudo: false
 matrix:
   fast_finish: true
   include:
-  - php: '5.6'
-    install: true
-    before_script: chmod +x bin/wraith.sh
-    env: TEST_SUITE=Wraith_Visual_Regression_Testing WRAITH_FAIL=5
-    script: "./bin/wraith.sh"
-  - php: '5.3'
-    dist: precise
+    - php: 7.2
+    - php: 7.1
+    - php: 7.0
+    - php: '5.6'
+      install: true
+      before_script: chmod +x bin/wraith.sh
+      env: TEST_SUITE=Wraith_Visual_Regression_Testing WRAITH_FAIL=5
+      script: "./bin/wraith.sh"
+    - php: 5.5
+      env: WP_VERSION=5.1
+    - php: 5.4
+      env: WP_VERSION=5.1
+    - php: 5.3
+      env: WP_VERSION=5.1
+      dist: precise
   allow_failures:
     - env: TEST_SUITE=Wraith_Visual_Regression_Testing WRAITH_FAIL=5
 branches: