title: Form validation in formvalidation.io conflict between multiple forms
body: <p>I'm using formvalidation.io and I have 2+ forms on the same page.</p>
  
  <p>When I submit form 1, the submit button is disabled if form 2 is not valid, even though form 1 is valid.</p>
  
  <p>JS:</p>
  
  <pre><code>$('form').formValidation({
      framework: 'bootstrap',
      trigger: 'keyup blur',
      fields: {
          required: {
              selector: '[validator="required"]',
              validators: {
                  notEmpty: {
                      message: 'This is required'
                  }
              }
          }
      })
  };
  </code></pre>
  
  <p>HTML:</p>
  
  <pre><code>&lt;form id="form-1"&gt;
    &lt;input type="text" validator="required"&gt;
    &lt;input type="text" validator="required"&gt;
    &lt;input type="submit" value="Submit"&gt;
  &lt;/form&gt;
  
  &lt;form id="form-2"&gt;
    &lt;input type="text" validator="required"&gt;
    &lt;input type="text" validator="required"&gt;
    &lt;input type="submit" value="Submit"&gt;
  &lt;/form&gt;
  </code></pre>