Strikethrough formatting

Hi, it's king_of_blades from reddit. I've finally managed to get my head around git. I was about to give up and just send you zipped source files :) 

Now a few things:
- I put DelTagHandler class in in.shick.diode.common package, for lack of a better idea, you may want to move it somewhere else,
- pretty much all of the code in DelTagHandler class comes from [this Stack Overflow post.](
http://stackoverflow.com/questions/4044509/android-how-to-use-the-html-taghandler)
Do you think that it would be appropriate to give some credit to the author? Maybe in a comment?

Ask me if you have any questions. I'm going to sleep now, I'll be reachable in 9-10 hours.