'Retrieve all Variable Explorer configuration settings.
Specifically, return the settings in CONF_SECTION with keys in
REMOTE_SETTINGS, and the setting \'dataframe_format\'.
Returns:
dict: settings'

def get_settings(self):

    settings = {}
    for name in REMOTE_SETTINGS:
        settings[name] = self.get_option(name)
    name = 'dataframe_format'
    settings[name] = '%{0}'.format(self.get_option(name))
    return settings
