'Return a builder specific option.
This method allows customization of common builder settings by
inserting the name of the current builder in the option key.
If the key does not exist, use default as builder name.'

def get_builder_config(self, option, default):

    try:
        optname = ('%s_%s' % (self.name, option))
        return getattr(self.config, optname)
    except AttributeError:
        optname = ('%s_%s' % (default, option))
        return getattr(self.config, optname)
