I've added an easier way to embed tweets. There's no button yet but it's similar to the way you embed youtube and vimeo videos!
Say you want to embed this tweet: [Only registered and activated users can see links. ]
All you have to do is copy the tweet id, which consists in the underlined numbers at the end of the url and paste them between [tweet ]307093047190093824[/ tweet] tages (no spaces)
The result should look like this:
Thanks [Only registered and activated users can see links. ] for the suggestion!