Log Message:
Update rdiff-backup from 0.12.7 to 1.0.1
Lots of changes/bugfixes including:
	rdiff-backup now writes its PID to current_mirror marker
	Security fixes with --restrict-read-only, --restrict-update-only and
		--restrict
	OSX fixes
For a full list of changes see:
	http://www.nongnu.org/rdiff-backup/CHANGELOG-stable