Bug 364297: Fix typo, add a few more names, r=mconnor

browser/base/content/credits.xhtml

@@ -368,6 +368,7 @@
             <li>Feng Qian</li>
             <li>Robert Rainwater</li>
             <li>Brian Rakowski</li>
+            <li>Neil Rashbrook</li>
             <li>J. Paul Reed</li>
             <li>Robert Relyea</li>
             <li>Deb Richardson</li>
@@ -409,12 +410,13 @@
             <li>Annie Sullivan</li>
             <li>Amir Szekely</li>
             <li>Dave Townsend</li>
+            <li>Chris Thomas</li>
             <li>Ben Turner</li>
             <li>Doug Turner</li>
             <li>Peter Van der Beken</li>
             <li>Peter van der Woude</li>
             <li>Daniel Veditz</li>
-            <li>Michael Ventor</li>
+            <li>Michael Ventnor</li>
             <li>Joost Verburg</li>
             <li>Jorge Villalobos</li>
             <li>Alexei Volkov</li>