Whoops
Fix text stripping order.

HTML tags were stripped before tags like <br />.
Which of course shouldn't be happening D:
Finish code striplining and added DownloadString

DownloadString is now also in MataHTTPClient, with regex stripping
included :)
Made code more clean and safer.
Changed the way messages are composed.

Reply messages and forward messages with ContentAdd are now in the style
of Magister instead of a Mata-ish style.
Personally I like this more, this commit isn't really needed, but is
more kind of a style issue. :)
Better text decoding.

The HTTPClient also strips forgein characaters now!