public void save(Map<String, Object> data) throws IOException {
		YamlWriter.persist(mFileName, data);
	}
public void save ( Map < String , Object > data ) throws IOException { YamlWriter . persist ( mFileName , data ) ; }
Saves a {@link Map} to the properties-file.

@param data
a {@link Map} with property keys and values to be stored.
Values can be deeper nested {@link Map}s.
@throws IOException
If the file could not be opened, created (when it doesn't
exist) or the given filename is a directory.