Merged a couple of pull requests together

Added milli units, hide amount, count error fix, Franko support, XHTML+HTML5 polyglot docs
New pull request where I merged a couple of features from other pull requests by others.

* Add options: milli units and hide amount
  From [pull 15](https://github.com/scottycc/coinwidget.com/pull/15)
* Statement throws "Cannot read property 'count' of null" when response is...
  From [pull 12](https://github.com/scottycc/coinwidget.com/pull/12)
* This request will add franko support
  From [pull 7](https://github.com/scottycc/coinwidget.com/pull/7)
* Updated to be compatible with XHTML and HTML5 polyglot documents
  From [pull 6](https://github.com/scottycc/coinwidget.com/pull/6)