title: gmaps4rails validates before validates presence set to true
body: <p>I encountered the following error when I submit an empty address field.</p>
  
  <p>Gmaps4rails::GeocodeInvalidQuery in LocationsController#create 
  You must provide an address</p>
  
  <p>My Model</p>
  
  <pre><code>class Location &lt; ActiveRecord::Base
    validates :address, :presence =&gt; true
  
    acts_as_gmappable
    def gmaps4rails_address
      address
    end
  
    def gmaps4rails_infowindow
      "&lt;h4&gt;#{name}&lt;/h4&gt;" &lt;&lt; "&lt;h4&gt;#{address}&lt;/h4&gt;"
    end
  end
  </code></pre>
  
  <p>The question why it never validates the address field presence or not and directly throw error?</p>