Merge ippeveprinter changes:

Merge ippeveprinter changes:

- IPP conformance issues with Create-Job, Send-Document, and Send-URI
- DNS-SD name collision changes
- Use FQDN with Avahi
- Multiple printer icon support
- Support Get-Printer-Attributes on "/"
- Rewrite URIs using Host: field
- Create the printer-uuid value using a deterministic algorithm
- Add "-S" option to define strings file
- Use system sounds on macOS for Identify-Printer
- Add Cancel-My-Jobs support
- Add "finishings-col" support
- Compiler warning fixes