Improve remote server console host support when binding to 0.0.0.0

Fix https://github.com/GNS3/gns3-gui/issues/1574

tests/controller/test_node.py

@@ -92,7 +92,7 @@ def test_json(node, compute):
         "name": "demo",
         "console": node.console,
         "console_type": node.console_type,
-        "console_host": str(compute.host),
+        "console_host": str(compute.console_host),
         "command_line": None,
         "node_directory": None,
         "properties": node.properties,