Updated Spanish translation

Uptated to 985t from master branch with typo fixes included.

debian/changelog

@@ -9,6 +9,7 @@ dpkg (1.15.8.7) UNRELEASED; urgency=low
   * Czech (Miroslav Kure). Closes: #605099
   * Indonesian (Arief S Fitrianto). Closes: #605248
   * Portuguese (Miguel Figueiredo). Closes: #605506
+  * Spanish (Javier Fernandez-Sanguino)
 
   [ Updated man page translations ]
   * German (Helge Kreutzmann).