title: Trying to search two columns using sequelize
body: <p>I'm trying to search a two columns in a mysql table using sequelize, using the same term.  So for instance, I want to search in a table called users, columns of first name and lastname, using a var called user input.  I've only managed to make it's either first and last, rather than first OR last.  How would I preform this query?  </p>