core: param loading/purging on profile connection/disconnection

- fixed default value in .*getParam.*

src/core/sat_main.py

@@ -268,6 +268,15 @@ class SAT(service.Service):
         info(_("Disconnecting..."))
         self.profiles[profile].stopService()
 
+    def purgeClient(self, profile):
+        """Remove reference to a profile client and purge cache
+        the garbage collector can then free the memory"""
+        try:
+            del self.profiles[profile]
+        except KeyError:
+            error(_("Trying to remove reference to a client not referenced"))
+        self.memory.purgeProfile(profile)
+
     def startService(self):
         info("Salut à toi ô mon frère !")
         #TODO: manage autoconnect