[Merge] ~chad.smith/update-notifier:esm-product-url-renaming into update-notifier:master

[Chad Smith]

Thanks for the review @rbalint. I've backed out the POTFILES.in changes.

One thing I did to here because I changed the gettext content is regenerate the po/* files using the command "cd po; intltool-update -r".

If translation template updates should not be provided in this update, I can back them out too.

thanks again.
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https://code.launchpad.net/~chad.smith/update-notifier/+git/update-notifier/+merge/393419
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