Added the logo to the about-dialog.

Kieker.WebGUI/src/main/webapp/main.xhtml

@@ -24,6 +24,7 @@
         </h:head>
 
         <h:body onload="initPageObjects();">
+
             <!-- This is the layout for the whole page. -->
             <p:layout id="layout" fullPage="true">
 

Kieker.WebGUI/src/main/webapp/main/aboutDialog.xhtml

@@ -10,6 +10,8 @@
     <p:dialog header="About..." resizable="false" modal="true"
               widgetVar="aboutDialog" id="aboutDialog">
         <h:form>
+            <img src="../img/kieker-logo-transparent.png" style="opacity: 0.25" />
+            <hr/>
             <h:outputText value="Kieker.WebGUI" />
             <br />
             <br />