CRM-13491 - add rounding to javascript values

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* CRM-13491: Cannot create contributions using a priceset for certain dollar amounts.
  http://issues.civicrm.org/jira/browse/CRM-13491

templates/CRM/Price/Form/Calculate.tpl

@@ -200,6 +200,9 @@ function calculateText( object ) {
 
 //display calculated amount
 function display( totalfee ) {
+    // totalfee is monetary, round it to 2 decimal points so it can
+    // go as a float - CRM-13491
+    totalfee = Math.round(totalfee*100)/100;
     var totalEventFee  = formatMoney( totalfee, 2, seperator, thousandMarker);
     document.getElementById('pricevalue').innerHTML = "<b>"+symbol+"</b> "+totalEventFee;
     scriptfee   = totalfee;