Fix for IE display bug

IE6 for windows does not display the admin menu items correctly - they're scattered everywhere. This is because of a well-known IE problem with floats. The issue can be fixed by changing the code in controlpanel.css from:

div.control-panel-item {
	float: left;
	margin: 1em;
	text-align: center;
	width: 50pt;
  padding: .1em;
}

to:

div.control-panel-item {
	float: left;
	margin: 1em;
	text-align: center;
	width: 50pt;
  padding: .1em;
  display: inline;
}