correct param

Author: nilchia

tools/bellavista/bellavista_prepare.xml

@@ -118,7 +118,7 @@
         <section name="advanced_output" title="Advanced output options">
             <param name="config" type="boolean" truevalue="True" falsevalue="False" checked="true" label="Output config file?"/>
         </section>
-        <param name="timeout" type="integer" min="0" max="21600" value="3600" label="timeout" hidden="true" help="hidden input to set timeout in seconds" />
+        <param name="timeout" type="hidden" min="0" max="21600" value="3600" label="timeout" help="hidden input to set timeout in seconds" />
     </inputs>
     <outputs>
         <data name="bellavista_output" format="tar.gz" label="${tool.name} on ${on_string}: Bellavista prepared inputs" from_work_dir="./bellavista.tar.gz" />