Raise Travis testing memory to 2048MB

Author: schlessera

.travis.yml

@@ -47,6 +47,9 @@ before_install:
     else
       echo "xdebug.ini does not exist"
     fi
+  - |
+    # Raise PHP memory limit to 2048MB
+    echo 'memory_limit = 2048M' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
 
 install:
   - composer require wp-cli/wp-cli:dev-master