build: skip MariaDB while Travis CI issues are resolved

Author: dougwilson

.travis.yml

@@ -15,6 +15,11 @@ matrix:
     - node_js: '4.4'
       env: MYSQL_TYPE=mariadb MYSQL_HOST=localhost MYSQL_DATABASE=node_mysql MYSQL_USER=root MYSQL_PASSWORD=
       addons: {mariadb: '10.1'}
+  allow_failures:
+    # Allow MariaDB to fail while https://github.com/travis-ci/travis-ci/issues/5837 is being resolved
+    - node_js: '4.4'
+      env: MYSQL_TYPE=mariadb MYSQL_HOST=localhost MYSQL_DATABASE=node_mysql MYSQL_USER=root MYSQL_PASSWORD=
+      addons: {mariadb: '10.1'}
 
 sudo: false