* Fix Undefined variable/key warnings
* massage for test data
* restore set_numeric, only generates noise
* Fix ucd storage used (apparently free is not stored in discovery...)
* feature: Allow ignore_mount, ignore_mount_string, ignore_mount_regex at OS level
* Change the storage settings to override global instead of merge.
Add documentation
* refactor: use the Config class includes/discovery
* fix issue with $config variable not accessible in include-dir.inc.php
* improved whitespace
* Tidy up discovery_by_ip