Fixed broken links for authors with https URLs

[dpanov]

This fixes a bug where if the author's homepage URL has an https:// instead of http:// it doesn't get replaced by exp:low_replace and causes invalid URLs - e.g. http://https://www.aaron-gustafson.com.

Here are some example pages where you can see the issue:

• https://alistapart.com/author/agustafson
• https://alistapart.com/author/jason-grigsby
• https://alistapart.com/author/chriscoyier

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Note: I haven't actually tested if this is working, 'cause I don't have the project set up locally, so proceed with caution.

[dpanov]

Seems like the issue was fixed one way or another, so I'm closing this.