Wrong URL at projects page after moving the site

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I built a site locally on MAMP. Moved the files & database to server and everything went just well. (largely thanks to docs and former discussions and following this:http://www.concrete5.org/documentation/developers/5.7/installation/...

After everything seemed to work with the new site, I connected it to community. And add-ons work just fine.
BUT when I go to My Accounts and to My concrete5 Sites I see that this new site is connected with the old - local! - URL.

What went wrong? What to do?

Does this matter?

How can one remove sites from My concrete5 Sites -list?

PaiviK