Activate Filtering on Enter key in IE

While it works in Firefox, IE was not firing the filters when "enter" is pressed. It needs additional bindings to work.

In nodeadmin.js in function setupDisplay around line 21, add the keyup events to existing events:

function setupDisplay() {
  // add event handlers
  $('input#filterText').change(filterNodes);
		$('input#filterText').keyup(function(e) {
			if(e.keyCode == 13) {
				filterNodes();
			}
		});
  $('select#filterType').change(filterNodes);
  $('input#filterUser').change(filterNodes);
		$('input#filterUser').keyup(function(e) {
			if(e.keyCode == 13) {
				filterNodes();
			}
		});
  $('input#optionLimit').change(filterNodes);
		$('input#optionLimit').keyup(function(e) {
			if(e.keyCode == 13) {
				filterNodes();
			}
		});
  $('input#optionOffset').change(filterNodes);
  $('select#addType').change(function () {
    if (this.value.length) {
      addNode(this.value);
      this.options[0].selected = true;
    }
  });