minor #169 Updated Spanish translation (javiereguiluz)

This PR was merged into the master branch.

Discussion
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Updated Spanish translation

Commits
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8bd17da Updated Spanish translation

Author: javiereguiluz

app/Resources/translations/messages.es.xliff

@@ -199,6 +199,10 @@
                 <source>post.no_comments</source>
                 <target>Se el primero en añadir un comentario en este artículo.</target>
             </trans-unit>
+            <trans-unit id="post.no_posts_found">
+                <source>post.no_posts_found</source>
+                <target>No se ha encontrado ningún artículo.</target>
+            </trans-unit>
 
             <trans-unit id="help.app_description">
                 <source>help.app_description</source>