change database engine for travis.
change database engine for travis.

miguelcleon/ODM2-Admin,miguelcleon/ODM2-Admin,ocefpaf/ODM2-Admin,ocefpaf/ODM2-Admin,miguelcleon/ODM2-Admin,ocefpaf/ODM2-Admin,ocefpaf/ODM2-Admin,miguelcleon/ODM2-Admin