Invert condition: allow to ask destruction always...

...except already destroyed or being destroyed.

master/bt5/vifib_web/SkinTemplateItem/portal_skins/vifib_hosting/SoftwareInstance_viewAsWeb/my_destroy_button.xml

@@ -153,7 +153,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: context.SoftwareInstance_getStatus() in ("Started", "Stopped", "Looking for a free partition")</string> </value>
+            <value> <string>python: context.SoftwareInstance_getStatus() not in (\'Destroyed\', \'Destruction in progress\')</string> </value>
         </item>
       </dictionary>
     </pickle>

master/bt5/vifib_web/bt/revision

-341
\ No newline at end of file
+342
\ No newline at end of file