Some broken website links fixed

Google have told me that several really old links to pages on DelphiDabbler.com are still in use and have been causing 404 errors on the new site. The old site had redirected them to newer URLs, but despite returning the correct "moved permanently" HTTP status codes, many decade old links have persisted.

I've managed to put redirects in place for some of them, but some have defeated me.

Still, most of the old links now take users somewhere sensible!

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