Added iBackup

Backup is a simple to use backup/restore utility.
It backups and restores user data and system and applications settings,
e.g. System Preferences, Mail, iPhoto, iTunes, but also 3rd party
applications settings, more than 250 plugins for backup application
settings are available, which allow you to restore the settings and
data of one application or to restore an earlier point in time.
Merge pull request #2965 from alebcay/ibackup

Added iBackup