Changes for the Broadcast Button

- I discovered a cross-site scripting bug when listing channel titles,
  and descriptions. I fixed that.
- Second, I wanted to help add the button as a fully fledged wordpress
  widget so that people could use the widget system to install the
  button. As well as leave the ability to just copy and paste the
  embed code.
Merge pull request #1 from voidfiles/master

Changes for the Broadcast Button