[Feature #47774587]
 Ok, lets try to add the details of this commit. I did quite a bit.
 For starters, now we don't have the "What is exciting lately?". Instead we have a "Thank God it's Friday!" on the TGIF mail.
 Cleaned up the MySQL import code. The missing entries are going to be missing forever. Let's keep the CSV file backed up.
 The TGIF mail now contains a set of styles specific to certain browsers. More details on boilerplate.html.
 We now have an emil frame for all mails (ideally). We need to tweak it more.
 ~Polish TGIF mail - Only links and look and feel