pfSense

Do not allow - in aliases. This breaks port aliases.
tables are fine with the - and the _. Ports only work with _.

• Do not close a buffer that has failed
• Automatically retry failed connection

Woops, actually use $url

Noticed-by: Seth

Add does_url_exist() which can verify a URL exists before downloading.

Install the package, deinstall and reinstall to ensure it is in a proper state.

Woops, use delete_package_xml() instead of delete_package()

Delete package before reinstalling to avoid multiple service entries, etc.

• add comments about scheduler logic
• correct one case where the logic was not correct

Keep 5 backups on embedded. Keep 30 on full installations.

Switch over to mpd4

Code-submitted-by: alan_AT_radiowave.ie