Tweak some styles to make the about dialog look a little better

mail/base/content/aboutDialog.css

@@ -26,8 +26,6 @@
 }
 
 #copyrightLink {
-  text-decoration: underline;
-  font-weight: bold;
   color: #909090;
 }
 

mail/base/locale/credits.html

@@ -76,7 +76,7 @@
         margin-left: 10px;
         margin-right: 10px;
         font-family: Arial, sans-serif;
-        font-size: small;
+        font-size: medium;
       }
       
       h3 {
@@ -235,7 +235,9 @@
 
           <h3>Special Thanks To</h3>
           <div class="credit">
+		    David Baron<br>
             André Dahlqvist<br>
+			Asa Dotzler<br>
             Christian Eyrich<br>
             silverorange<br>
             Johnny Stenback<br>