RoboTamer Backup: Backup files using rsync

This class can backup files using rsync.

It reads a .INI file with configuration values that define at least the source and destination directories to backup.

The class executes thr rsync program to synchronize the files between the source and destination directories.

A list of files may be excluded from the backup by defining them in a separate exclude file.

A log file records all performed actions. A separate PHP file is created with values of the current backup session that may be read next time the backup process is executed.