* $SnapshotDeepMaintenanceDays = $null disables deep data checks
* updated install binary links to v0.14
* add config point for additional backup parameters
* - backup and maintenance run independently
- fixed issues with several incorrect function return values
* check for new version of restic during maintenance
* removing duplicate excludes, resolves#60
* update restic .exe version
add self-update to the install script
* Release 1.6 Changelog updates
- when $true, missing external drives or folders don't produce errors
- when $null or $false, missing drives and/or folders result in an error
- Default is set ot $false as not to silently fail backing up a source
- select backup source by drive label, device name, or serial number
- fix forget policy to be safe for multiple drives (group by host,tags)
- tag each backup source with drive/source name
