title: angular ui-grid : change label of the sum aggregate
body: <p>I am using the sum aggregate to calculate some totals in an angular ui-grid.</p>
  
  <p>The totals get displayed just fine but I could not figure out how to change the label that gets preceeds to the total.</p>
  
  <p>if the total is 5000 for example, the footer will display : total : 5000</p>
  
  <p>How do I remove the word total ? I see it in the source but I cannot figure out how to change it without changing the source.</p>
  
  <p>Thanks</p>