Fuse 6.1 introduction + some amendments

* Addition of fuse introduction
* extended readme.md and 
* altered Gruntfile.js to listen on all local addresses (useful when sharing the presentation on a local N/W),  
* Also moved examples to content.
I don't think it makes sense. The changes do work as I've tested both presentations. I think we should have an examples index in the examples folder that links all the examples. This way the site folder for each presentation is all grouped together. It's much cleaner.