Support for multiple local sources (expanded wildcards)

[disq]

If a wildcard are expanded to more than one local file, the command fails with "Invalid parameters" error message. As a workaround, local wildcards should be passed in single quotes to prevent wildcard expansion.

Commands with local-file sources should support more than one source to fix this. This would also enable multiple wildcards being specified as source.

Also keep the built-in wildcard expansion so that piped wildcards in a commands file continue to work.