def vim_enter(self, filename):
        """Set up EnsimeClient when vim enters.

        This is useful to start the EnsimeLauncher as soon as possible."""
        success = self.setup(True, False)
        if success:
            self.editor.message("start_message")
Set up EnsimeClient when vim enters.

        This is useful to start the EnsimeLauncher as soon as possible.