Replaced "Scholar is loaded" line with Zotero logo

This needs to be replaced with a 24-bit PNG with a transparent (rather than white) background -- Dan, you can either send that to me or go ahead and replace it yourself (I'd do it but I don't know the kerning, etc.)

Using a -1px bottom margin to get infinite height (a la Fitts's Law) when maximized, though I haven't tested on Windows or Linux -- let me know if clicking the screen edge doesn't work for you

chrome/chromeFiles/content/scholar/overlay.xul

@@ -212,13 +212,16 @@
 	</vbox>
 	
 	<statusbar id="status-bar">
-		<statusbarpanel id="scholar-load-status" label="Scholar is NOT loaded" onclick="ScholarPane.toggleDisplay();"/>
+		<statusbarpanel id="scholar-status-bar-icon"
+			src="chrome://scholar/skin/zotero_logo_14px.png"
+			class="statusbarpanel-iconic" onclick="ScholarPane.toggleDisplay();"
+			hidden="true"/>
 	</statusbar>
 	
 	<script>
 	window.addEventListener('load', function(e){
 		if (Scholar){
-			document.getElementById('scholar-load-status').setAttribute('label', 'Scholar is loaded');
+			document.getElementById('scholar-status-bar-icon').setAttribute('hidden', 'false');
 		}
 	}, false);
 	</script>

chrome/chromeFiles/skin/default/scholar/overlay.css

@@ -1,3 +1,9 @@
+#scholar-status-bar-icon
+{
+	width: 49px;
+	margin:0 5px -1px;
+}
+
 #scholar-pane
 {
 	background: #f5f5f5;