Local template with all dependancies

[pirrmann]

When trying to write slides on the train without an internet connection, I'd like to have some dependencies copied locally.
To do that, I use an other html template than the default one, and I've tweaked the fake script to copy additional js files to the output directory.
However, I think that this could be part of FsReveal itself... Any thoughts?

[forki]

Cc @TeaDrivenDev

Yes we definitely want it to work offline

[isaacabraham]

yes I've struggled with this before.