Fixed the forgot password email delivery operation to properly support HTML formatted emails.

Before the fix:
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Hi iraklis\n\nWe have received a request to reset your password.\n
To reset your password, please click on the link below or copy and paste the
URL into your browser:\n<a
href="https://www.XXX.com/account/reset_password?id=4&token=XXX">https://www.XXX.com/account/reset_password?id=4&token=XXX</a>

after the fix:
-----------------
Hi iraklis

We have received a request to reset your password.

To reset your password, please click on the link below or copy and paste the URL into your browser:
https://www.XXX.com/account/reset_password?id=4&token=XXX