enable mysql in travis via services key

Author: dastergon

.travis.yml

@@ -1,5 +1,6 @@
 sudo: required
 dist: trusty
+services: mysql
 
 # Add encrypted env variables, used for setting up the test environment
 env:
@@ -13,7 +14,7 @@ env:
 
 before_script:
   # Change the default user-password pair for mysql (pre-installed on Travis CI)
-  - mysql -u root -e "UPDATE user SET Password=PASSWORD('hello') WHERE User='root';FLUSH PRIVILEGES;" mysql
+  - mysql -u root -e "UPDATE user SET Password=PASSWORD('hello') WHERE User='root';FLUSH PRIVILEGES;"
   - sudo service mysql restart
   # Install our app
   - scripts/travis_install.sh