fix missing namespace

[nicholascioli]

After trying to run the examples, I noticed that the Ganglion object is contained within the Ganglion namespace (e.g. new Ganglion() vs. new Ganglion.Ganglion()). This was missing from the both examples' index.js. Let me know if this is an issue with how I ran the examples vs. an issue with the examples themselves.

Steps to reproduce the error:

git clone https://github.com/alexcastillo/ganglion-ble
cd ganglion-ble
npm install

Versions:

• npm -> 5.6.0
• node -> v9.5.0