title: sequelizejs, use RegEx to query
body: <p>I want do something, like what I can do in Mongoose:</p>
  
  <pre><code>Customers.find({
              $or: [
                  {firstName: {$in: RegExpArray}},
                  {lastName: {$in: RegExpArray}},
                  {email: {$in: RegExpArray}}
              ]
          }).limit(50);
  </code></pre>
  
  <p>I tried:</p>
  
  <pre><code>Customers.findAll({
              where: {
                  $or: [
                      {firstName: {$iLike: {$in: RegExpArray}}},
                      {lastName: {$iLike: {$in: RegExpArray}}},
                      {email: {$iLike: {$in: RegExpArray}}}
                  ]
              },
              limit: 50});
  </code></pre>
  
  <p>Also I tried use <code>$regex</code> instead of <code>$iLike</code>, or pass array <code>[ '%someString%', '%someString%', '%someString%'...]</code> instead of <code>RegExpArray</code> what should work, but non of this worked. Is it any way to use regex in query?</p>