Fixed memory leaks.

apps/aqhome-storage/u_login.c

@@ -307,6 +307,7 @@ AQH_SESSION *_generateSessionForUser(AQH_SERVICE *sv, AQH_USER *u)
 
   session=AQH_Session_new();
   AQH_Session_SetUid(session, GWEN_Buffer_GetStart(buf));
+  GWEN_Buffer_free(buf);
 
   ts=GWEN_Timestamp_NowInLocalTime();
   AQH_Session_SetTimestampCreation(session, ts);

aqhome/data/storage_writexml.c

@@ -76,6 +76,7 @@ int AQH_Storage_WriteStateFile(const AQH_STORAGE *sto, const char *sFilename)
     GWEN_XMLNode_free(rootNode);
     return rv;
   }
+  GWEN_Buffer_free(nbuf);
   GWEN_XMLNode_free(rootNode);
   return 0;
 }