Studio doesn't do email changes, thus has no email reset template; thus, we must disable password/email-reset related tests when running with studio settings
Several templates used a variable set by the user (the request host header). This led to a vulnerability where an attacker could inject their domain name into these templates (i.e., activation emails). This patch fixes this vulnerability.
LMS-532
The most common error is Amazon SES having blacklisted an email address.
However, we handle any error being raised during user.email_user.
Fixes JIRA LMS-131
