Changed Guillem's mail address as per his request

debian/changelog

@@ -1,9 +1,9 @@
 apt (0.7.5) UNRELEASED; urgency=low
 
   [ Otavio Salvador ]
-  * Applied patch from Guillem Jover <guillem.jover@nokia.com> to use
+  * Applied patch from Guillem Jover <guillem@debian.org> to use
     dpkg-architecture to get the host architecture (closes: #407187)
-  * Applied patch from Guillem Jover <guillem.jover@nokia.com> to add
+  * Applied patch from Guillem Jover <guillem@debian.org> to add
     support to add lzma support (closes: #408201)
 
   [ Michael Vogt ]