Support for sendings settings for the GNS3VM from the GUI

Ref https://github.com/GNS3/gns3-gui/issues/1441

gns3server/web/route.py

@@ -31,7 +31,7 @@ log = logging.getLogger(__name__)
 from ..compute.error import NodeError, ImageMissingError
 from ..controller.controller_error import ControllerError
 from ..ubridge.ubridge_error import UbridgeError
-from ..controller.gns3_vm_error import GNS3VMError
+from ..controller.gns3vm.gns3_vm_error import GNS3VMError
 from .response import Response
 from ..crash_report import CrashReport
 from ..config import Config

gns3server/web/web_server.py

@@ -97,7 +97,7 @@ class WebServer:
             self._handler = None
 
         if Config.instance().get_section_config("Server").getboolean("controller"):
-            yield from Controller.instance().close()
+            yield from Controller.instance().stop()
 
         for module in MODULES:
             log.debug("Unloading module {}".format(module.__name__))
@@ -272,7 +272,7 @@ class WebServer:
         self._loop.set_debug(True)
 
         if server_config.getboolean("controller"):
-            asyncio.async(Controller.instance().load())
+            asyncio.async(Controller.instance().start())
 
         for key, val in os.environ.items():
             log.debug("ENV %s=%s", key, val)