70099: Remove new MailNews dependency on Navigator.

(r=jbetak,sr=mscott,a=dbaron). move the url from browser to communicator.

suite/locales/en-US/chrome/common/region.properties

@@ -0,0 +1,3 @@
+# search-panel.properties
+#   Localizable URLs
+defaultSearchURL=http://search.netscape.com/cgi-bin/search?charset=UTF-8&search=