New textarea buttons

When you try to type a text now, you'll get some buttons for the most useful Pseudo HTML tags.

This should make it a little easier for new Elftowners to use them.

I hope they aren't too buggy, but report on the <forum:Elftown, Bugs> otherwise.

Not obvious tip: If you highlight a piece of text, the tag will be inserted around it when you press the button.

Note: The wikicomment fields don't get buttons, because that would be ugly.